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.
19 results
Oct 22, 2026WP Mailster: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-111830 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.This issue affects WP Mailster: from n/a through 1.9.1.0.
- Product
- WP Mailster
- Affected
- up to 1.9.1.0
- What to do
- Affects up to 1.9.1.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 21, 2026WP Mailster: Unrestricted Upload of File with Dangerous TypeCVE-2026-111832 · WordPress plugins & themes · reported by PatchstackCritical 10
Unrestricted Upload of File with Dangerous Type vulnerability in WP Mailster WP Mailster wp-mailster allows Upload a Web Shell to a Web Server.This issue affects WP Mailster: from n/a through 1.9.1.0.
- Product
- WP Mailster
- Affected
- up to 1.9.1.0
- What to do
- Affects up to 1.9.1.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 19, 2026WP Mailster: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')CVE-2026-111829 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in WP Mailster WP Mailster wp-mailster allows PHP Local File Inclusion.This issue affects WP Mailster: from n/a through 1.9.1.0.
- Product
- WP Mailster
- Affected
- up to 1.9.1.0
- What to do
- Affects up to 1.9.1.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 6, 2026Unauthenticated Cross Site Scripting (XSS) in WP Mailster <= 1.9.0.0 versions.CVE-2026-105061 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Unauthenticated Cross Site Scripting (XSS) in WP Mailster <= 1.9.0.0 versions.
- Affected
- up to 1.9.0.0
- What to do
- Affects up to 1.9.0.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 5, 2026WP Mailster: Missing AuthorizationCVE-2026-105055 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Missing Authorization vulnerability in WP Mailster WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through 1.9.0.0.
- Product
- WP Mailster
- Affected
- up to 1.9.0.0
- What to do
- Affects up to 1.9.0.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Feb 14, 2025WP Mailster: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-24688 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in brandtoss WP Mailster wp-mailster allows Reflected XSS.This issue affects WP Mailster: from n/a through <= 1.8.20.0.
- Product
- WP Mailster
- Affected
- up to 1.8.20.0
- What to do
- Affects up to 1.8.20.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Feb 14, 2025WP Mailster: Insertion of Sensitive Information Into Sent DataCVE-2025-24567 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Insertion of Sensitive Information Into Sent Data vulnerability in brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
- Product
- WP Mailster
- Affected
- up to 1.8.16.0
- What to do
- Affects up to 1.8.16.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Feb 4, 2025WP Mailster: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-24598 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in brandtoss WP Mailster wp-mailster allows Reflected XSS.This issue affects WP Mailster: from n/a through <= 1.8.17.0.
- Product
- WP Mailster
- Affected
- up to 1.8.17.0
- What to do
- Affects up to 1.8.17.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Feb 3, 2025WP Mailster: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-24559 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in brandtoss WP Mailster wp-mailster allows Reflected XSS.This issue affects WP Mailster: from n/a through <= 1.8.15.0.
- Product
- WP Mailster
- Affected
- up to 1.8.15.0
- What to do
- Affects up to 1.8.15.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Jan 7, 2025WP Mailster: Insertion of Sensitive Information Into Sent DataCVE-2025-22303 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Insertion of Sensitive Information Into Sent Data vulnerability in brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.17.0.
- Product
- WP Mailster
- Affected
- up to 1.8.17.0
- What to do
- Affects up to 1.8.17.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 16, 2024WP Mailster: Cross-Site Request Forgery (CSRF)CVE-2024-54355 · WordPress plugins & themes · reported by PatchstackMedium 4.3
Cross-Site Request Forgery (CSRF) vulnerability in brandtoss WP Mailster wp-mailster allows Cross Site Request Forgery.This issue affects WP Mailster: from n/a through <= 1.8.17.0.
- Product
- WP Mailster
- Affected
- up to 1.8.17.0
- What to do
- Affects up to 1.8.17.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 6, 2024WP Mailster: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')CVE-2024-53807 · WordPress plugins & themes · reported by PatchstackHigh 8.5
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in brandtoss WP Mailster wp-mailster allows Blind SQL Injection.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
- Product
- WP Mailster
- Affected
- up to 1.8.16.0
- What to do
- Affects up to 1.8.16.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 6, 2024WP Mailster: Missing AuthorizationCVE-2024-53805 · WordPress plugins & themes · reported by PatchstackHigh 7.5
Missing Authorization vulnerability in brandtoss WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
- Product
- WP Mailster
- Affected
- up to 1.8.16.0
- What to do
- Affects up to 1.8.16.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 6, 2024WP Mailster: Insertion of Sensitive Information Into Sent DataCVE-2024-53804 · WordPress plugins & themes · reported by PatchstackHigh 7.5
Insertion of Sensitive Information Into Sent Data vulnerability in brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
- Product
- WP Mailster
- Affected
- up to 1.8.16.0
- What to do
- Affects up to 1.8.16.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 6, 2024WP Mailster: Missing AuthorizationCVE-2024-53803 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Missing Authorization vulnerability in brandtoss WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
- Product
- WP Mailster
- Affected
- up to 1.8.16.0
- What to do
- Affects up to 1.8.16.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 3, 2024WP Mailster: Stored Cross-Site ScriptingCVE-2024-11782 · WordPress plugins & themes · reported by WordfenceMedium 6.4
The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
- Product
- WP Mailster
- Affected
- up to 1.8.17.0
- What to do
- Affects up to 1.8.17.0. Update WP Mailster 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
Nov 28, 2024WP Mailster: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2024-53737 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in brandtoss WP Mailster wp-mailster allows Stored XSS.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
- Product
- WP Mailster
- Affected
- up to 1.8.16.0
- What to do
- Affects up to 1.8.16.0. Update WP Mailster to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 21, 2021WP Mailster 1.6.18.0 allows XSS when a victim opens a mail server's details in the mst_servers page, for a crafted server_host, server_name, or connection_paramCVE-2021-28975 · Other software · Wpmailster · reported by MITREMedium 6.1
WP Mailster 1.6.18.0 allows XSS when a victim opens a mail server's details in the mst_servers page, for a crafted server_host, server_name, or connection_parameter parameter.
- Product
- WP Mailster
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcompass-security.comcompass-security.com
Dec 6, 2017The WP Mailster plugin before 1.5.5 for WordPress has XSS in the unsubscribe handler via the mes parameter to view/subscription/unsubscribe2.php.CVE-2017-17451 · WordPress plugins & themes · reported by MITREMedium 6.1
The WP Mailster plugin before 1.5.5 for WordPress has XSS in the unsubscribe handler via the mes parameter to view/subscription/unsubscribe2.php.
- Product
- WP Mailster
- Fixed in
- 1.5.5
- What to do
- Update WP Mailster to 1.5.5 or newer.
Full record and what to do →NVD recordpacketstormsecurity.comwordpress.org
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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