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.
295 results · page 3 of 6
Oct 27, 2022Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform.CVE-2022-39330 · Other software · nextcloud · reported by GitHubMedium 4.8
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to versions 23.0.10 and 24.0.6 and Nextcloud Enterprise Server prior to versions 22.2.10, 23.0.10, and 24.0.6 are vulnerable to a logged-in attacker slowing down the system by generating a lot of database/cpu load. Nextcloud Server versions 23.0.10 and 24.0.6 and Nextcloud Enterprise Server versions 22.2.10, 23.0.10, and 24.0.6 contain patches for this issue. As a workaround, disable the Circles app.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 27, 2022Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform.CVE-2022-39329 · Other software · nextcloud · reported by GitHubLow 3.5
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server and Nextcloud Enterprise Server prior to versions 23.0.9 and 24.0.5 are vulnerable to exposure of information that cannot be controlled by administrators without direct database access. Versions 23.0.9 and 24.0.5 contains patches for this issue. No known workarounds are available.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2022Nextcloud server is an open source personal cloud platform.CVE-2022-39211 · Other software · nextcloud · reported by GitHubLow 3
Nextcloud server is an open source personal cloud platform. In affected versions it was found that locally running webservices can be found and requested erroneously. It is recommended that the Nextcloud Server is upgraded to 23.0.8 or 24.0.4. It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.10.4, 23.0.8 or 24.0.4. There are no known workarounds for this issue.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2022Nextcloud server is an open source personal cloud product.CVE-2022-36074 · Other software · nextcloud · reported by GitHubMedium 6.4
Nextcloud server is an open source personal cloud product. Affected versions of this package are vulnerable to Information Exposure which fails to strip the Authorization header on HTTP downgrade. This can lead to account access exposure and compromise. It is recommended that the Nextcloud Server is upgraded to 23.0.7 or 24.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.11, 23.0.7 or 24.0.3. There are no known workarounds for this issue.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 6, 2022Nextcloud Password Policy is an app that enables a Nextcloud server admin to define certain rules for passwords.CVE-2022-35931 · Other software · nextcloud · reported by GitHubLow 2.7
Nextcloud Password Policy is an app that enables a Nextcloud server admin to define certain rules for passwords. Prior to versions 22.2.10, 23.0.7, and 24.0.3 the random password generator may, in very rare cases, generate common passwords that the validator itself would block. Upgrade Nextcloud Server to 22.2.10, 23.0.7 or 24.0.3 to receive a patch for the issue in Password Policy. There are no known workarounds available.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 4, 2022Nextcloud server is an open source personal cloud solution.CVE-2022-31120 · Other software · nextcloud · reported by GitHubLow 2.1
Nextcloud server is an open source personal cloud solution. The audit log is used to get a full trail of the actions which has been incompletely populated. In affected versions federated share events were not properly logged which would allow brute force attacks to go unnoticed. This behavior exacerbates the impact of CVE-2022-31118. It is recommended that the Nextcloud Server is upgraded to 22.2.7, 23.0.4 or 24.0.0. There are no workarounds available.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 4, 2022Nextcloud server is an open source personal cloud solution.CVE-2022-31118 · Other software · nextcloud · reported by GitHubMedium 6.5
Nextcloud server is an open source personal cloud solution. In affected versions an attacker could brute force to find if federated sharing is being used and potentially try to brute force access tokens for federated shares (`a-zA-Z0-9` ^ 15). It is recommended that the Nextcloud Server is upgraded to 22.2.9, 23.0.6 or 24.0.2. Users unable to upgrade may disable federated sharing via the Admin Sharing settings in `index.php/settings/admin/sharing`.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 5, 2022Nextcloud server is an open source personal cloud server.CVE-2022-31014 · Other software · nextcloud · reported by GitHubMedium 5.4
Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the attacker can then hijack an already-authenticated SMTP session and run arbitrary SMTP commands as the email user, such as sending emails to other users, changing the FROM user, and so on. As before, this depends on the configuration of the server itself, but newlines should be sanitized to mitigate such arbitrary SMTP command injection. It is recommended that the Nextcloud Server is upgraded to 22.2.8 , 23.0.5 or 24.0.1. There are no known workarounds for this issue.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 31, 2022Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform.CVE-2022-29243 · Other software · nextcloud · reported by GitHubMedium 4.3
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.7 and 23.0.4, missing input-size validation of new session names allows users to create app passwords with long names. These long names are then loaded into memory on usage, resulting in impacted performance. Versions 22.2.7 and 23.0.4 contain a fix for this issue. There are currently no known workarounds available.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 20, 2022Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform.CVE-2022-29163 · Other software · nextcloud · reported by GitHubLow 3.5
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.6 and 23.0.3, a user can create a link that is not password protected even if the administrator requires links to be password protected. Versions 22.2.6 and 23.0.3 contain a patch for this issue. There are currently no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 27, 2022Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform.CVE-2022-24889 · Other software · nextcloud · reported by GitHubLow 2.4
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 21.0.8, 22.2.4, and 23.0.1, it is possible to trick administrators into enabling "recommended" apps for the Nextcloud server that they do not need, thus expanding their attack surface unnecessarily. This issue is fixed in versions 21.0.8 , 22.2.4, and 23.0.1.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 27, 2022Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform.CVE-2022-24888 · Other software · nextcloud · reported by GitHubMedium 4.3
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1, it is possible to create files and folders that have leading and trailing \n, \r, \t, and \v characters. The server rejects files and folders that have these characters in the middle of their names, so this might be an opportunity for injection. This issue is fixed in versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1. There are currently no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 10, 2022Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server.CVE-2021-41233 · Other software · nextcloud · reported by GitHubMedium 6.5
Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server, an attacker is able to access the folder names of "File Drop". For successful exploitation an attacker requires knowledge of the sharing link. It is recommended that users upgrade their Nextcloud Server to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the Nextcloud Text application in the application settings.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 9, 2022Nextcloud server is an open source, self hosted cloud style services platform.CVE-2022-24741 · Other software · nextcloud · reported by GitHubLow 3.5
Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 8, 2022Nextcloud server is a self hosted system designed to provide cloud style services.CVE-2021-41241 · Other software · nextcloud · reported by GitHubMedium 4.3
Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the "groupfolders" application in the admin settings.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 8, 2022Nextcloud server is a self hosted system designed to provide cloud style services.CVE-2021-41239 · Other software · nextcloud · reported by GitHubMedium 5.3
Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 7, 2021NoMachine Cloud Server is affected by Buffer Overflow.CVE-2021-42980 · Other software · Nomachine · reported by MITREHigh 8.8
NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.
- Product
- Cloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsentinelone.comsentinelone.com
Dec 7, 2021NoMachine Cloud Server is affected by Integer Overflow.CVE-2021-42979 · Other software · Nomachine · reported by MITREHigh 8.8
NoMachine Cloud Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.
- Product
- Cloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsentinelone.comsentinelone.com
Sep 7, 2021Nextcloud server is an open source, self hosted personal cloud.CVE-2021-32802 · Other software · nextcloud · reported by GitHubCritical 9.3
Nextcloud server is an open source, self hosted personal cloud. Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untrusted user-supplied content. There are several security concerns with passing user-generated content to this library, such as Server-Side-Request-Forgery, file disclosure or potentially executing code on the system. The risk depends on your system configuration and the installed library version. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. These versions do not use this library anymore. As a workaround users may disable previews by setting `enable_previews` to `false` in `config.php`.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.nextcloud.comgithub.com
Sep 7, 2021Nextcloud server is an open source, self hosted personal cloud.CVE-2021-32801 · Other software · nextcloud · reported by GitHubMedium 5.5
Nextcloud server is an open source, self hosted personal cloud. In affected versions logging of exceptions may have resulted in logging potentially sensitive key material for the Nextcloud Encryption-at-Rest functionality. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. If upgrading is not an option users are advised to disable system logging to resolve this issue until such time that an upgrade can be performed Note that ff you do not use the Encryption-at-Rest functionality of Nextcloud you are not affected by this bug.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 7, 2021Nextcloud server is an open source, self hosted personal cloud.CVE-2021-32800 · Other software · nextcloud · reported by GitHubHigh 8.1
Nextcloud server is an open source, self hosted personal cloud. In affected versions an attacker is able to bypass Two Factor Authentication in Nextcloud. Thus knowledge of a password, or access to a WebAuthN trusted device of a user was sufficient to gain access to an account. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. There are no workaround for this vulnerability.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 7, 2021Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server.CVE-2021-32766 · Other software · nextcloud · reported by GitHubMedium 5.3
Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 7, 2021Session fixation on password protected public links in the ownCloud Server before 10.8.0 allows an attacker to bypass the password protection when they can forcCVE-2021-35948 · Other software · Owncloud · reported by MITREMedium 5.4
Session fixation on password protected public links in the ownCloud Server before 10.8.0 allows an attacker to bypass the password protection when they can force a target client to use a controlled cookie.
- Product
- Owncloud
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddoc.owncloud.comowncloud.com
Sep 7, 2021The shareinfo controller in the ownCloud Server before 10.8.0 allows an attacker to bypass the permission checks for upload only shares and list metadata about CVE-2021-35949 · Other software · Owncloud · reported by MITREMedium 5.3
The shareinfo controller in the ownCloud Server before 10.8.0 allows an attacker to bypass the permission checks for upload only shares and list metadata about the share.
- Product
- Owncloud
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddoc.owncloud.comowncloud.com
Sep 7, 2021The public share controller in the ownCloud server before version 10.8.0 allows a remote attacker to see the internal path and the username of a public share byCVE-2021-35947 · Other software · Owncloud · reported by MITREMedium 5.3
The public share controller in the ownCloud server before version 10.8.0 allows a remote attacker to see the internal path and the username of a public share by including invalid characters in the URL.
- Product
- Owncloud
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddoc.owncloud.comowncloud.com
Aug 18, 2021The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer.CVE-2021-37617 · Other software · nextcloud · reported by GitHubHigh 7.3
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. The Nextcloud Desktop Client invokes its uninstaller script when being installed to make sure there are no remnants of previous installations. In versions 3.0.3 through 3.2.4, the Client searches the `Uninstall.exe` file in a folder that can be written by regular users. This could lead to a case where a malicious user creates a malicious `Uninstall.exe`, which would be executed with administrative privileges on the Nextcloud Desktop Client installation. This issue is fixed in Nextcloud Desktop Client version 3.3.0. As a workaround, do not allow untrusted users to create content in the `C:\` system folder and verify that there is no malicious `C:\Uninstall.exe` file on the system.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2021The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer.CVE-2021-32728 · Other software · nextcloud · reported by GitHubMedium 6.5
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a private key belongs to previously downloaded public certificate. If the Nextcloud instance serves a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. This issue is fixed in Nextcloud Desktop Client version 3.3.0. There are no known workarounds aside from upgrading.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32741 · Other software · nextcloud · reported by GitHubMedium 5.3
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the public share link mount endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32734 · Other software · nextcloud · reported by GitHubLow 3.1
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, the Nextcloud Text application shipped with Nextcloud Server returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, one may disable the Nextcloud Text application in Nextcloud Server app settings.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32726 · Other software · nextcloud · reported by GitHubHigh 7.1
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, webauthn tokens were not deleted after a user has been deleted. If a victim reused an earlier used username, the previous user could gain access to their account. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32725 · Other software · nextcloud · reported by GitHubLow 3.5
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, default share permissions were not being respected for federated reshares of files and folders. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32705 · Other software · nextcloud · reported by GitHubMedium 5.3
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the public DAV endpoint. This may have allowed an attacker to enumerate potentially valid share tokens or credentials. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32703 · Other software · nextcloud · reported by GitHubMedium 5.3
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the shareinfo endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32688 · Other software · nextcloud · reported by GitHubHigh 8.8
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server supports application specific tokens for authentication purposes. These tokens are supposed to be granted to a specific applications (e.g. DAV sync clients), and can also be configured by the user to not have any filesystem access. Due to a lacking permission check, the tokens were able to change their own permissions in versions prior to 19.0.13, 20.0.11, and 21.0.3. Thus fileystem limited tokens were able to grant themselves access to the filesystem. The issue is patched in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds aside from upgrading.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32680 · Other software · nextcloud · reported by GitHubLow 3.3
Nextcloud Server is a Nextcloud package that handles data storage. In versions priot to 19.0.13, 20.0.11, and 21.0.3, Nextcloud Server audit logging functionality wasn't properly logging events for the unsetting of a share expiration date. This event is supposed to be logged. This issue is patched in versions 19.0.13, 20.0.11, and 21.0.3.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32679 · Other software · nextcloud · reported by GitHubLow 3.5
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, filenames where not escaped by default in controllers using `DownloadResponse`. When a user-supplied filename was passed unsanitized into a `DownloadResponse`, this could be used to trick users into downloading malicious files with a benign file extension. This would show in UI behaviours where Nextcloud applications would display a benign file extension (e.g. JPEG), but the file will actually be downloaded with an executable file extension. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. Administrators of Nextcloud instances do not have a workaround available, but developers of Nextcloud apps may manually escape the file name before passing it into `DownloadResponse`.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32678 · Other software · nextcloud · reported by GitHubLow 3.7
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, ratelimits are not applied to OCS API responses. This affects any OCS API controller (`OCSController`) using the `@BruteForceProtection` annotation. Risk depends on the installed applications on the Nextcloud Server, but could range from bypassing authentication ratelimits or spamming other Nextcloud users. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. No workarounds aside from upgrading are known to exist.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 11, 2021Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations.CVE-2021-22915 · Other software · Nextcloud · reported by support@hackerone.comCritical 9.8
Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations. This could potentially result in an attacker bypassing rate-limit controls such as the Nextcloud brute-force protection.
- Product
- Nextcloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordhackerone.comlists.fedoraproject.org
Jun 1, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32657 · Other software · nextcloud · reported by GitHubMedium 4.3
Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The vulnerability is fixed in versions 19.0.11, 20.0.10, and 21.0.2. As a workaround, administrators can use the OCC command line tool to administrate the Nextcloud users.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Jun 1, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32656 · Other software · nextcloud · reported by GitHubHigh 8.6
Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added as a federated share. This happens because Nextcloud supports sharing registered users with other Nextcloud servers, which can be done automatically when selecting the "Add server automatically once a federated share was created successfully" setting. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2 As a workaround, disable "Add server automatically once a federated share was created successfully" in the Nextcloud settings.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Jun 1, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32655 · Other software · nextcloud · reported by GitHubLow 3.5
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to convert a Files Drop link to a federated share. This causes an issue on the UI side of the sharing user. When the sharing user opens the sharing panel and tries to remove the "Create" privileges of this unexpected share, Nextcloud server would silently grant the share read privileges. The vulnerability is patched in versions 19.0.11, 20.0.10 and 21.0.2. No workarounds are known to exist.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Jun 1, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32654 · Other software · nextcloud · reported by GitHubHigh 8.1
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to receive write/read privileges on any Federated File Share. Since public links can be added as federated file share, this can also be exploited on any public link. Users can upgrade to patched versions (19.0.11, 20.0.10 or 21.0.2) or, as a workaround, disable federated file sharing.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Jun 1, 2021Nextcloud Server is a Nextcloud package that handles data storage.CVE-2021-32653 · Other software · nextcloud · reported by GitHubLow 2.7
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server versions prior to 19.0.11, 20.0.10, or 21.0.2 send user IDs to the lookup server even if the user has no fields set to published. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2; no workarounds outside the updates are known to exist.
- Product
- security-advisories
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
May 20, 2021ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure.CVE-2021-29659 · Other software · Owncloud · reported by MITREMedium 6.5
ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.
- Product
- Owncloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddoc.owncloud.comowncloud.com
Mar 3, 2021Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.CVE-2021-22878 · Other software · Nextcloud · reported by support@hackerone.comMedium 4.8
Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.
- Product
- Nextcloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Mar 3, 2021A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not alreaCVE-2021-22877 · Other software · Nextcloud · reported by support@hackerone.comMedium 6.5
A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.
- Product
- Nextcloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 3, 2021Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.CVE-2020-8296 · Other software · Nextcloud · reported by support@hackerone.comMedium 6.7
Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.
- Product
- Nextcloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 19, 2021ownCloud Server 10.x before 10.3.1 allows an attacker, who has one outgoing share from a victim, to access any version of any file by sending a request for a prCVE-2020-36252 · Other software · Owncloud · reported by MITREMedium 6.8
ownCloud Server 10.x before 10.3.1 allows an attacker, who has one outgoing share from a victim, to access any version of any file by sending a request for a predictable ID number.
- Product
- Owncloud Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordowncloud.comowncloud.com
Feb 19, 2021ownCloud Server before 10.3.0 allows an attacker, who has received non-administrative access to a group share, to remove everyone else's access to that share.CVE-2020-36251 · Other software · Owncloud · reported by MITRELow 3.5
ownCloud Server before 10.3.0 allows an attacker, who has received non-administrative access to a group share, to remove everyone else's access to that share.
- Product
- Owncloud
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordowncloud.comowncloud.com
Feb 19, 2021The File Firewall before 2.8.0 for ownCloud Server does not properly enforce file-type restrictions for public shares.CVE-2020-36249 · Other software · Owncloud · reported by MITREHigh 7.5
The File Firewall before 2.8.0 for ownCloud Server does not properly enforce file-type restrictions for public shares.
- Product
- File Firewall
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordowncloud.comowncloud.com
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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