Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
3,618 results · page 4 of 73
Sep 23, 2026Easy Hide Login: Does not fully enforce its hidden-login protectionCVE-2026-84168 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Easy Hide Login WordPress plugin before 1.7 does not fully enforce its hidden-login protection, allowing an unauthenticated attacker to reach the standard login page through certain password-reset request parameters and to recover the site's configured secret login slug from the returned page, defeating the Easy Hide Login WordPress plugin before 1.7's core protection.
- Product
- Easy Hide Login
- Fixed in
- 1.7
- What to do
- Update Easy Hide Login to 1.7 or newer.
Sep 23, 2026WP OAuth Server ( Login with WordPress ): Does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchangedCVE-2026-82843 · WordPress plugins & themes · reported by WPScanCritical 9
The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.4.0 does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchanged, returning instead the assertion belonging to whichever user authenticated most recently, which allows users with the Subscriber role and above to obtain a validly signed identity assertion for another user, including an administrator, and authenticate as them at any application that uses the site for single sign-on.
- Product
- WP OAuth Server ( Login with WordPress )
- Fixed in
- 6.4.0
- What to do
- Update WP OAuth Server ( Login with WordPress ) to 6.4.0 or newer.
Sep 22, 2026Improper Restriction of Excessive Authentication Attempts in the administration login of pH7Software pH7Builder (pH7 Social Dating CMS) through 19.2.0.CVE-2026-37603 · Other software · reported by MITREMedium 6.5
Improper Restriction of Excessive Authentication Attempts in the administration login of pH7Software pH7Builder (pH7 Social Dating CMS) through 19.2.0. The CAPTCHA escalation flag is stored in the PHP session as captcha_admin_enabled and the CAPTCHA form element is only built when that flag is present, so a remote unauthenticated attacker who obtains a new session before each login attempt is never presented with the challenge.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcybermapgroup.comgithub.com
Sep 22, 2026In MISP's UsersController login() method, the pre-authentication database query used for the TOTP (two-factor authentication) verification branch did not includCVE-2026-95754 · Other software · MISP · reported by 5a6e4751-2f3f-4070-9419-94fb35b644e8Medium 6.9
In MISP's UsersController login() method, the pre-authentication database query used for the TOTP (two-factor authentication) verification branch did not include the User.disabled column in its SELECT fields list. The query selected only User.password, User.totp, and User.hotp_counter. When the TOTP branch subsequently accessed $unauth_user['User']['disabled'], the key was absent from the result set, producing a PHP 'Undefined array key' warning and causing the expression to evaluate as null (falsy). As a result, the disabled-user guard in the TOTP branch was effectively a no-op: a disabled, TOTP-enrolled user could proceed to the TOTP verification step rather than being rejected at that point. The commit message explicitly states this was 'harmless in practice' because the subsequent identify() call re-validates the user and would still reject a disabled account. The practical security impact is therefore minimal, limited to a very small information-disclosure difference in the login response (a TOTP prompt is presented instead of an immediate rejection) and a PHP warning in application logs.
- Product
- MISP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 21, 2026Pagekit CMS <= 1.0.18 allows an unauthenticated attacker to perform SQL injection through the credentials array submitted to the public login endpoint (POST /usCVE-2026-88756 · Other software · reported by MITREMedium 5.3
Pagekit CMS <= 1.0.18 allows an unauthenticated attacker to perform SQL injection through the credentials array submitted to the public login endpoint (POST /user/authenticate).
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 21, 2026The login() function in MISP's UsersController.php contained insufficient HTTP method validation for several security-critical code paths.CVE-2026-94379 · Other software · MISP · reported by 5a6e4751-2f3f-4070-9419-94fb35b644e8Medium 6.9
The login() function in MISP's UsersController.php contained insufficient HTTP method validation for several security-critical code paths. The original code used an allowlist approach, checking only for specific HTTP methods (POST and PUT) before enforcing bruteforce protection, email one-time-password (OTP) verification, and login-failure logging. Because the checks were not exhaustive, an unauthenticated attacker could issue login requests using other HTTP methods and bypass all three security controls simultaneously. Specifically: - the bruteforce blocklisting check and attempt counter were skipped, allowing unlimited credential-guessing attempts without being rate-limited or blocked - the email OTP two-factor authentication step was skipped, defeating the second factor of authentication - login-failure events were neither logged nor counted, removing the audit trail and the mechanism that would normally trigger a blocklist entry. The security impact is the effective disabling of brute-force protection and multi-factor authentication for any attacker who can craft an HTTP request with a non-POST/PUT method to the login endpoint, potentially leading to credential compro
- Product
- MISP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 19, 2026Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress: Arbitrary shortcode executionCVE-2026-85658 · WordPress plugins & themes · reported by WordfenceHigh 8.1
The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.17.2 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.
- Product
- Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress
- Affected
- up to 4.17.2
- What to do
- Affects up to 4.17.2. Update Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 19, 2026OTP Login & Register Woocommerce: Stored Cross-Site ScriptingCVE-2026-12402 · WordPress plugins & themes · reported by WordfenceMedium 4.4
The OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'fb-config' Setting in all versions up to, and including, 2.7.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. On multisite installations where administrators do not hold the unfiltered_html capability, this vulnerability can be leveraged to target the network super administrator.
- Product
- OTP Login & Register Woocommerce
- Affected
- up to 2.7.3
- What to do
- Affects up to 2.7.3. Update OTP Login & Register Woocommerce to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 19, 2026UsersWP: Does not verify that a social login provider has confirmed ownership of an email address before using it to resolve an existing accountCVE-2026-86814 · WordPress plugins & themes · reported by WPScanHigh 8.1
The UsersWP WordPress plugin before 1.5.10 does not verify that a social login provider has confirmed ownership of an email address before using it to resolve an existing account, allowing unauthenticated attackers to log in as any user, including administrators, whose email address they can assert through a provider account of their own.
- Product
- UsersWP
- Fixed in
- 1.5.10
- What to do
- Update UsersWP to 1.5.10 or newer.
Sep 18, 2026An out-of-bounds write vulnerability exists in some of the Ethernet switches because of improper validation of the username field length during Web login procesCVE-2026-15579 · Other software · Moxa · reported by psirt@moxa.comHigh 8.8
An out-of-bounds write vulnerability exists in some of the Ethernet switches because of improper validation of the username field length during Web login processing. This may allow a remote attacker to submit a specially crafted overly long input, triggering a buffer overflow that can cause the authentication process to crash and result in a Denial of Service (DoS) attack.
- Product
- TN-4500B Series
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026An insufficient entropy vulnerability in login logic in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allCVE-2026-13639 · Network & remote access · Synology · reported by security@synology.comCritical 9.8
An insufficient entropy vulnerability in login logic in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.
- Product
- DiskStation Manager (DSM)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026Clean Login: Does not verify its registration CAPTCHACVE-2026-90977 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Clean Login WordPress plugin before 1.19 does not verify its registration CAPTCHA when the stored session value is empty, allowing unauthenticated users to bypass the anti-automation control on the registration form and create accounts without solving it.
- Product
- Clean Login
- Fixed in
- 1.19
- What to do
- Update Clean Login to 1.19 or newer.
Sep 18, 2026Clean Login: Does not check whether user registration is enabled before creating an account in its registration handlerCVE-2026-90976 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled.
- Product
- Clean Login
- Fixed in
- 1.19
- What to do
- Update Clean Login to 1.19 or newer.
Sep 18, 2026Hide My WP Ghost: Does not properly validate a loopback security-check request before disabling its login and URL hiding protectionCVE-2026-86800 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Hide My WP Ghost WordPress plugin before 7.0.11 does not properly validate a loopback security-check request before disabling its login and URL hiding protection, dropping that protection precisely when the request's verification value is missing or incorrect, which any visitor can arrange, allowing unauthenticated attackers to re-expose the concealed WordPress login page location.
- Product
- Hide My WP Ghost
- Fixed in
- 7.0.11
- What to do
- Update Hide My WP Ghost to 7.0.11 or newer.
Sep 18, 2026Foxtool All-in-One: Contact chat button, Custom login, Media optimize images: Authorization bypassCVE-2026-18317 · WordPress plugins & themes · reported by WordfenceMedium 4.3
The Foxtool All-in-One: Contact chat button, Custom login, Media optimize images plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.5.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify arbitrary subkeys of the foxtool_settings option, including enabling site-wide SVG uploads by toggling the media-up3 key, which can facilitate stored cross-site scripting via malicious SVG files.
- Product
- Foxtool All-in-One: Contact chat button, Custom login, Media optimize images
- Affected
- up to 2.5.3
- What to do
- Affects up to 2.5.3. Update Foxtool All-in-One: Contact chat button, Custom login, Media optimize images to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 17, 2026In the Linux kernel, the following vulnerability has been resolved: IB/isert: reject login PDUs declaring more data than was received isert_login_recv_done() CVE-2026-90413 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Critical 9.1
In the Linux kernel, the following vulnerability has been resolved: IB/isert: reject login PDUs declaring more data than was received isert_login_recv_done() records how many bytes the HCA actually placed in the login buffer, but nothing compares that against the length the login PDU's BHS declares. isert_rx_login_req() copies min(login_req_len, MAX_KEY_VALUE_PAIRS) bytes into login->req_buf, and the login code then reads the declared length back out of that buffer - for the first PDU in iscsi_target_locate_portal(), payload_length = ntoh24(login_req->dlength); tmpbuf = kmemdup_nul(login->req_buf, payload_length, GFP_KERNEL); and for the ones after it in iscsi_decode_text_input(), reached from iscsi_target_do_login(). login->req_buf is a fixed MAX_KEY_VALUE_PAIRS (8192) byte allocation, so an initiator that declares more than it sends reads off the end of it, before authentication and with the length under its control: BUG: KASAN: slab-out-of-bounds in kmemdup_nul+0x43/0x80 Read of size 8193 at addr ffff8881056a8000 by task iscsi_np/167 __asan_memcpy+0x23/0x60 kmemdup_nul+0x43/0x80 iscsi_target_locate_portal+0x48d/0x1180 iscsi_target_login_thread+0x19a9/0x3
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
Sep 17, 2026In the Linux kernel, the following vulnerability has been resolved: IB/isert: delay the final Login Response until the session is registered isert_put_login_tCVE-2026-90294 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.5
In the Linux kernel, the following vulnerability has been resolved: IB/isert: delay the final Login Response until the session is registered isert_put_login_tx() puts the final Login Response on the wire before __transport_register_session(), which iscsi_post_login_handler() reaches only after iscsi_target_do_login() returns. An initiator that issues a SCSI command as soon as it sees that response can have it executed against an se_session whose se_tpg is still NULL, and the ib-comp-wq worker oopses on the NULL dereference. Oops: general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f] CPU: 0 UID: 0 PID: 178 Comm: kworker/0:1H Not tainted 7.2.0-rc5-V2CTL-gf5098b6bae76 #10 PREEMPT(lazy) Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: ib-comp-wq ib_cq_poll_work RIP: 0010:target_submit+0xbe/0x390 Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 89 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 64 24 18 49 8d 7c 24 78 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5a 02 00 00 48 8d 7b 78 4d 8b 6c
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
Sep 17, 2026In the Linux kernel, the following vulnerability has been resolved: IB/isert: post the full-feature receive buffers after session registration isert_put_loginCVE-2026-90293 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.5
In the Linux kernel, the following vulnerability has been resolved: IB/isert: post the full-feature receive buffers after session registration isert_put_login_tx() posts the full-feature receive buffers before __transport_register_session() runs, so an initiator that does not wait for the final Login Response can still have a SCSI command executed against an se_session whose se_tpg is NULL - the same oops as the previous patch, at target_submit+0xbe. Post them from isert_get_rx_pdu(), which the previous patch already uses to send that response, and post them before that send: the receive queue is filled at the moment the initiator is told it may use it. Allocating there keeps the existing property that a memory allocation failure cannot happen once the final Login Response is on the wire. The receive queue is already empty between the final Login Request and isert_post_recvm(); this moves the second point later, from a median of 92 us to 172 us over 1200 logins. Only an initiator that sends before it has been told to can reach that window, and on IB and RoCE its send is retried there until the buffers appear - isert_rdma_accept() asks for rnr_retry_count = 7. iWARP has no RN
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
Sep 17, 2026In the Linux kernel, the following vulnerability has been resolved: smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer Free it unconditionCVE-2026-90175 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
In the Linux kernel, the following vulnerability has been resolved: smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer Free it unconditionally after ksmbd_alloc_user() calls. kmemleak splat: unreferenced object 0xffff888103b83540 (size 192): comm "pool-0", pid 16970, jiffies 4377290937 hex dump (first 32 bytes): 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 408ccc66): __kvmalloc_node_noprof+0x730/0x920 handle_generic_event+0xec/0x1a0 [ksmbd] genl_family_rcv_msg_doit+0xe0/0x130 genl_rcv_msg+0x181/0x290 netlink_rcv_skb+0x4f/0x100 genl_rcv+0x28/0x40 netlink_unicast+0x1e6/0x2c0 netlink_sendmsg+0x20a/0x450 ____sys_sendmsg+0x2e8/0x310 ___sys_sendmsg+0x78/0xc0 __sys_sendmsg+0x63/0xc0 do_syscall_64+0xa1/0x670 entry_SYSCALL_64_after_hwframe+0x76/0x7e
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
Sep 17, 2026AVideo LoginControl contains an authentication bypass vulnerability in the PGP second factor verification that compares challenge responses using loose equalityCVE-2026-92914 · Other software · WWBN · reported by VulnCheckHigh 8.6
AVideo LoginControl contains an authentication bypass vulnerability in the PGP second factor verification that compares challenge responses using loose equality against an uninitialized session variable. Attackers with a victim's password can bypass the second factor by sending a parameter-less GET request to verifyChallenge.json.php, which evaluates null == null and marks authentication complete.
- Product
- AVideo
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 17, 2026Login with QR: Does not verify that the code used to log a user in is one it issuedCVE-2026-86710 · WordPress plugins & themes · reported by WPScanCritical 9.8
The Login with QR WordPress plugin through 1.0.0 does not verify that the code used to log a user in is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.
- Product
- Login with QR
- Affected
- up to 1.0.0
- What to do
- Affects up to 1.0.0. Update Login with QR to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Sep 17, 2026Pressengine: Does not stop its login handler from issuing a sessionCVE-2026-86709 · WordPress plugins & themes · reported by WPScanCritical 9.8
The Pressengine WordPress plugin through 1.0 does not stop its login handler from issuing a session when authentication fails, allowing unauthenticated attackers to log in as any user, including administrators.
- Product
- Pressengine
- Affected
- up to 1.0
- What to do
- Affects up to 1.0. Update Pressengine to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Sep 16, 2026WWBN AVideo through 29.0 contains an authentication bypass vulnerability where the stored password hash is accepted as a valid login credential through two indeCVE-2026-92578 · Other software · WWBN · reported by VulnCheckCritical 9.2
WWBN AVideo through 29.0 contains an authentication bypass vulnerability where the stored password hash is accepted as a valid login credential through two independent code paths in loginFromRequest() and encryptPasswordVerify(). Attackers who obtain the stored users.password hash value can authenticate as any user by submitting the hash directly to login endpoints, completely bypassing password verification.
- Product
- AVideo
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 16, 2026A server-side request forgery (SSRF) vulnerability exists in the UnifiedLogin service of Altium Enterprise Server.CVE-2026-92808 · Other software · Altium · reported by 4760f414-e1ae-4ff1-bdad-c7a9c3538b79Critical 10
A server-side request forgery (SSRF) vulnerability exists in the UnifiedLogin service of Altium Enterprise Server. An unauthenticated network attacker can cause the server to issue outbound HTTP requests to a destination of the attacker's choosing, including internal services that are reachable only from the server itself. One such internal service exposes server configuration and credential material without authentication, relying only on the request originating locally. Because the forged requests originate from the server process, that check is satisfied. An unauthenticated attacker can therefore retrieve stored credentials and use them to obtain an administrative session, resulting in full compromise of the server and all of its services. Altium 365 cloud deployments are not affected, as the affected endpoint is disabled in cloud mode.
- Product
- Altium Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026A flaw was found in the first-broker-login flow of the keycloak-services component.CVE-2026-19607 · Other software · Red Hat · reported by Red HatMedium 5.3
A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matching username on an external provider to trigger a collision in Keycloak, which results in the legitimate user being locked out of their account.
- Product
- Red Hat build of Keycloak 26.4
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Sep 16, 2026Jenkins Keycloak Authentication Plugin 2.4.1 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.CVE-2026-92141 · Websites & servers · Jenkins Project · reported by jenkinsci-cert@googlegroups.comMedium 4.3
Jenkins Keycloak Authentication Plugin 2.4.1 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.
- Product
- Jenkins Keycloak Authentication Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.CVE-2026-91843 · Other software · checkpoint · reported by cve@checkpoint.comCritical 9.8
A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.
- Product
- Quantum Security Management
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupport.checkpoint.com
Sep 16, 2026In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Reserve a terminator byte for the login payload iscsi_target_check_loCVE-2026-90011 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Critical 9.1
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Reserve a terminator byte for the login payload iscsi_target_check_login_request() rejects a login PDU whose DataSegmentLength exceeds MAX_KEY_VALUE_PAIRS, but the test is '>' and login->req_buf is allocated with exactly MAX_KEY_VALUE_PAIRS bytes. Since iscsit_get_login_rx() receives payload_length + padding bytes, where padding = ((-payload_length) & 3); any payload_length from 8189 to 8192 fills the whole 8192 byte buffer. The write stays in bounds, but no byte is left for a NUL terminator. The buffer is subsequently consumed as a C string. In the CHAP path chap_check_algorithm() calls kstrdup(a_str), and extract_param() calls strstr(in_buf, pattern) followed by strlen_semi(), none of which take a length. convert_null_to_semi() additionally rewrites every embedded NUL to ';', so even a payload made of well formed NUL separated key=value records is left without a terminator. These walk past the end of the object into adjacent slab memory. It is reachable by an unauthenticated initiator against a portal configured for CHAP; when authentication is not required iscsi_login_zero_tsih_s2() re
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
Sep 16, 2026A flaw was found in the first broker login flow of Keycloak.CVE-2026-92358 · Other software · Red Hat · reported by Red HatMedium 6.4
A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually removes the link. An attacker who controls the external identity can exploit this leftover proof to silently re-establish the link and gain unauthorized access to the victims account without any further confirmation.
- Product
- Red Hat Build of Keycloak
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026BookStack before 26.05.5 contains an authentication bypass vulnerability in its social login implementation that allows unauthenticated attackers to sign in as CVE-2026-89022 · Other software · bookstackapp · reported by VulnCheckCritical 9.1
BookStack before 26.05.5 contains an authentication bypass vulnerability in its social login implementation that allows unauthenticated attackers to sign in as arbitrary users by authenticating through a different social provider sharing the same driver_id namespace. Attackers can authenticate at one enabled social provider using a user ID that matches an account linked to a different social provider, bypassing credential verification entirely because the SocialAuthService::handleLoginCallback query ignores the driver column when retrieving linked account records.
- Product
- bookstack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbookstackapp.comvulncheck.com
Sep 15, 2026Vouch Proxy is an SSO and OAuth/OIDC login solution for Nginx using the auth_request module.CVE-2026-55149 · Other software · vouch · reported by GitHubHigh 7.5
Vouch Proxy is an SSO and OAuth/OIDC login solution for Nginx using the auth_request module. Prior to 0.48.0, Cookie in pkg/cookie/cookie.go parses the total part count from an attacker-controlled multipart cookie name and passes the value to make([]string, numParts) without checking that the value is positive or reasonably bounded. Requests to /validate and /_external-auth-:id reach JWTCacheHandler in pkg/jwtmanager/jwtcache.go, FindJWT in pkg/jwtmanager/jwtmanager.go, and the vulnerable cookie reassembly before JWT validation, so no account or valid session is required. A cookie name such as VouchCookie_1of10000000000 causes an attempted slice allocation of roughly 160 GB and a fatal Go runtime out-of-memory condition, allowing one request to crash the authentication proxy and repeated requests to sustain unavailability. This vulnerability is fixed in 0.48.0.
- Product
- vouch-proxy
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026Yonyou U8 CRM contains an unauthenticated SQL injection vulnerability in the fillbacksettingedit.php configuration endpoint where the DontCheckLogin=1 parameterCVE-2024-58385 · Other software · Yonyou · reported by VulnCheckCritical 9.3
Yonyou U8 CRM contains an unauthenticated SQL injection vulnerability in the fillbacksettingedit.php configuration endpoint where the DontCheckLogin=1 parameter bypasses authentication and the id parameter is incorporated into SQL queries without sanitization. Attackers can exploit this flaw to execute arbitrary SQL commands and, on Microsoft SQL Server deployments with xp_cmdshell enabled, write backdoor files and execute arbitrary operating system commands. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-02-13.
- Product
- U8 CRM
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcn-sec.comsecurity.yonyou.com
Sep 15, 2026Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token CVE-2026-91972 · Other software · go-vikunja · reported by VulnCheckHigh 8.7
Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding attacks without throttling restrictions.
- Product
- vikunja
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 15, 2026By default, Payara Server does not limit the number of failed login attempts, which can leave it vulnerable to brute force login attacks.CVE-2026-92082 · Other software · Payara · reported by 769c9ae7-73c3-4e47-ae19-903170fc3eb8Medium 6.3
By default, Payara Server does not limit the number of failed login attempts, which can leave it vulnerable to brute force login attacks. To mitigate this, Payara Server includes built-in automatic attack protection. For configuration details, see https://docs.azul.com/payara/technical-documentation/payara-server-documentation/security-guide/administering-system-security.html .
- Product
- Payara Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.azul.comdocs.azul.com
Sep 13, 2026User Registration & Membership: Does not validate the destination of a post-login redirect before redirectingCVE-2026-80072 · WordPress plugins & themes · reported by WPScanMedium 4.7
The User Registration & Membership WordPress plugin before 5.2.8 does not validate the destination of a post-login redirect before redirecting, allowing unauthenticated attackers to redirect visitors to an arbitrary external URL, which can be abused for phishing.
- Product
- User Registration & Membership
- Fixed in
- 5.2.8
- What to do
- Update User Registration & Membership to 5.2.8 or newer.
Sep 12, 2026Zonify: Does not perform any capability or authentication check before returning the site's stored account login tokenCVE-2026-87842 · WordPress plugins & themes · reported by WPScanHigh 7.5
The Zonify WordPress plugin before 1.0.5 does not perform any capability or authentication check before returning the site's stored account login token, allowing unauthenticated attackers to retrieve it and authenticate to the site owner's linked service account.
- Product
- Zonify
- Fixed in
- 1.0.5
- What to do
- Update Zonify to 1.0.5 or newer.
Sep 12, 2026Temporary Login Without Password: Does not prevent a temporary user from creating an Application PasswordCVE-2026-77753 · WordPress plugins & themes · reported by WPScanMedium 5.5
The Temporary Login Without Password WordPress plugin before 1.9.9 does not prevent a temporary user from creating an Application Password, and does not revoke one when the temporary access expires or is disabled, allowing the recipient of a temporary login to retain working access to the site over REST and XML-RPC after the administrator believes it has been withdrawn. The retained access carries whatever role was granted, which for the Temporary Login Without Password WordPress plugin before 1.9.9's main use case is Administrator.
- Product
- Temporary Login Without Password
- Fixed in
- 1.9.9
- What to do
- Update Temporary Login Without Password to 1.9.9 or newer.
Sep 12, 2026Temporary Login Without Password: Does not verify that the user requesting a temporary login holds network super admin rights before granting the new account those rightsCVE-2026-77752 · WordPress plugins & themes · reported by WPScanHigh 7.2
The Temporary Login Without Password WordPress plugin before 1.9.9 does not verify that the user requesting a temporary login holds network super admin rights before granting the new account those rights, allowing an administrator of a single site on a multisite network to take over the whole network. The same missing check also allows an existing account, including the attacker's own, to be promoted.
- Product
- Temporary Login Without Password
- Fixed in
- 1.9.9
- What to do
- Update Temporary Login Without Password to 1.9.9 or newer.
Sep 11, 2026AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to HTMCVE-2026-89255 · Other software · WWBN · reported by VulnCheckCritical 9.3
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to HTML-encode PGP public keys echoed into a textarea element. An authenticated attacker can inject malicious JavaScript by submitting a crafted public key, which executes in an administrator's session when viewing the user's profile tab.
- Product
- AVideo
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 11, 2026Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner…: Stored Cross-Site ScriptingCVE-2026-81754 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… plugin for WordPress is vulnerable to Stored Cross-Site Scripting via User-Agent Header in all versions up to, and including, 2.10.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The malicious payload is delivered passively by any unauthenticated visitor who triggers a failed login attempt with a crafted User-Agent header, requiring no further interaction from the attacker once stored.
- Product
- Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner…
- Affected
- up to 2.10.2
- What to do
- Affects up to 2.10.2. Update Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 11, 2026OTP Login & Register Woocommerce: Authentication BypassCVE-2026-12215 · WordPress plugins & themes · reported by WordfenceMedium 5.3
The OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Authentication Bypass via OTP Brute Force in all versions up to, and including, 2.7.2. The vulnerability exists because the OTP rate-limit attempt counter in `process_otp_form` is keyed exclusively on the attacker-controlled `xoo_ml_user_ip_data` cookie's `ip_address` field, allowing unlimited counter resets by simply rotating the cookie, while the OTP itself is generated with PHP's non-cryptographic `rand()` function over a default space of only 9,000 possible values (1000–9999), and both the OTP issuance endpoint (`xoo_ml_login_with_otp`) and verification endpoint (`xoo_ml_otp_form_submit`) are registered as unauthenticated `wp_ajax_nopriv` actions with no nonce or capability checks. This makes it possible for unauthenticated attackers to brute-force the OTP for any registered account and obtain a full WordPress authentication session — including for administrator accounts — via `wp_set_auth_cookie()` in `login_user_with_otp()`. Exploitation requires the attacker to know the target user's registered phone number, which is used to trigger OTP issuance via the unauthenticated `xoo_ml_login_with_otp` endpoint
- Product
- OTP Login & Register Woocommerce
- Affected
- up to 2.7.2
- What to do
- Affects up to 2.7.2. Update OTP Login & Register Woocommerce to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 10, 2026Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session.CVE-2026-81906 · Other software · Concrete CMS · reported by ff5b8ace-8b95-4078-9743-eac1ca5451deMedium 6.3
Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session. A deactivated or unvalidated user with an existing OAuth binding could complete authentication and receive a session that was fully authenticated for the callback response, with the login recorded and login events dispatched. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori from Tenzai for reporting.
- Product
- Concrete CMS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocumentation.concretecms.org
Sep 10, 2026Concrete CMS below 9.5.3 stores user validation hashes for multiple purposes (email/registration validation, password reset, and persistent login) in a single tCVE-2026-81905 · Other software · Concrete CMS · reported by ff5b8ace-8b95-4078-9743-eac1ca5451deMedium 6.3
Concrete CMS below 9.5.3 stores user validation hashes for multiple purposes (email/registration validation, password reset, and persistent login) in a single table with a type column, but the redemption path resolves a hash by value alone and does not verify its type. As a result, a hash issued for one purpose can be redeemed for another: a long-lived registration hash (60-day expiry) can be submitted to the password-change endpoint to set a new password on the target account, and a password-reset hash can be submitted to the email-validation endpoint to activate an account. Exploitation requires the attacker to first obtain a valid hash through a separate channel (for example email interception, log exposure, or SSRF against an internal mail relay), so the flaw amplifies the impact of any hash disclosure rather than creating a standalone entry point. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori from Tenzai for reporting.
- Product
- Concrete CMS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocumentation.concretecms.org
Sep 10, 2026WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a cross-site request forgery vulnerability in the LoginControl plugin PGP key endpoCVE-2026-88870 · Other software · WWBN · reported by VulnCheckHigh 7.1
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a cross-site request forgery vulnerability in the LoginControl plugin PGP key endpoints that lack CSRF token validation. Attackers can craft malicious pages with image tags pointing to savePublicKey.json.php to replace a logged-in victim's PGP 2FA public key, causing lockout or enabling account takeover if the attacker knows the password.
- Product
- AVideo
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 10, 2026WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails tCVE-2026-88866 · Other software · WWBN · reported by VulnCheckCritical 9.3
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history. Attackers with any valid login account can inject malicious scripts in the User-Agent header that execute in administrator browsers when viewing the Login History page, allowing script execution within the administrator session.
- Product
- AVideo
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 9, 2026PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large or complex structures in unknown clientData JWT proCVE-2026-86201 · Other software · pmmp · reported by VulnCheckHigh 8.7
PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large or complex structures in unknown clientData JWT properties cause excessive logging without sanitization. Attackers can send crafted LoginPackets with deeply nested or massive object structures to trigger out-of-memory conditions and crash the server.
- Product
- PocketMine-MP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 9, 2026PocketMine-MP versions before 5.42.1 contain a denial of service vulnerability in the LoginPacket handler that allows remote attackers to flood warning messagesCVE-2026-86200 · Other software · pmmp · reported by VulnCheckMedium 6.9
PocketMine-MP versions before 5.42.1 contain a denial of service vulnerability in the LoginPacket handler that allows remote attackers to flood warning messages by injecting numerous junk properties into the clientData JWT. Attackers can craft malicious login packets with excessive unknown properties to waste server CPU time and degrade performance.
- Product
- PocketMine-MP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 9, 2026PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication.CVE-2026-86199 · Other software · pmmp · reported by VulnCheckHigh 8.7
PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login authentication. Unauthenticated players can trigger an uninitialized property access error that crashes the server.
- Product
- PocketMine-MP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 9, 2026PocketMine-MP before 5.11.1 contains a denial of service vulnerability in LoginPacket JSON processing that allows remote attackers to crash the server by sendinCVE-2024-58381 · Other software · pmmp · reported by VulnCheckHigh 8.7
PocketMine-MP before 5.11.1 contains a denial of service vulnerability in LoginPacket JSON processing that allows remote attackers to crash the server by sending malformed JSON data. Attackers can exploit improper object initialization from scalar JSON types to trigger unset required properties, causing the application to crash.
- Product
- PocketMine-MP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 9, 2026PocketMine-MP versions before 4.20.5 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper validation in the JsonMapper dependenCVE-2023-54393 · Other software · pmmp · reported by VulnCheckHigh 8.7
PocketMine-MP versions before 4.20.5 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper validation in the JsonMapper dependency. Attackers can send malformed JSON structures in LoginPacket to crash the server.
- Product
- PocketMine-MP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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