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Plugin · cleantalk-spam-protect
CleanTalk
16 known vulnerabilities on record. Add your version above to see which ones affect you.
Oct 23, 2026Anti-Spam by CleanTalk – Spam Protection Without CAPTCHA: Stored Cross-Site ScriptingCVE-2026-109198 · affects up to 6.89.1 · reported by WordfenceHigh 7.2
The Anti-Spam by CleanTalk – Spam Protection Without CAPTCHA plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'user_email' parameter in all versions up to, and including, 6.89.1 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. Successful exploitation requires user registration to be open on the site, and script execution is triggered when an Administrator subsequently runs the plugin's user-spam scan and views the resulting Non-checkable users or Spam users tab — the plugin's own documented workflow.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Oct 10, 2026Anti-Spam by CleanTalk – Spam Protection Without CAPTCHA: Stored Cross-Site ScriptingCVE-2026-103424 · affects up to 6.88 · reported by WordfenceMedium 5.4
The Anti-Spam by CleanTalk – Spam Protection Without CAPTCHA plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 6.88 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. This vulnerability is exploitable once a comment from the attacker's email address has been approved; on default WordPress installations, only the first comment from a given email address is held for moderation, meaning subsequent comments auto-approve and immediately expose the payload to site visitors.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 9, 2026CleanTalk: Does not prevent unauthenticatedCVE-2026-19855 · fixed in 6.87 · reported by WPScanMedium 6.5
The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site executed server-side and rendered to every subsequent visitor of the page.
Sep 5, 2026Spam protection, Honeypot, Anti-Spam by CleanTalk: Stored Cross-Site ScriptingCVE-2026-77830 · affects up to 6.86 · reported by WordfenceHigh 7.2
The Spam protection, Honeypot, Anti-Spam by CleanTalk plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content aria-label Placeholder in all versions up to, and including, 6.86 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is deliverable via unauthenticated comment submission and executes exclusively for non-logged-in visitors; if comment moderation is enabled, an approving moderator must first publish the comment before the script reaches other users.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Jul 27, 2026Unauthenticated Cross Site Scripting (XSS) in Spam protection, AntiSpam, FireWall by CleanTalk <= 6.82 versions.CVE-2026-65437 · affects up to 6.82 · reported by PatchstackHigh 7.1
Unauthenticated Cross Site Scripting (XSS) in Spam protection, AntiSpam, FireWall by CleanTalk <= 6.82 versions.
Jun 10, 2026Anti-Spam by CleanTalk. Spam protection: Does not properly sanitize content within a custom shortcode used in its email-encoding featureCVE-2026-8071 · fixed in 6.79 · reported by WPScanHigh 8.8
The Anti-Spam by CleanTalk. Spam protection WordPress plugin before 6.79 does not properly sanitize content within a custom shortcode used in its email-encoding feature, allowing unauthenticated attackers to inject arbitrary web scripts into approved comments that will execute when any user (including administrators) views the post.
Feb 14, 2026Spam protection, Anti-Spam, FireWall by CleanTalk: Unauthorized Arbitrary Plugin InstallationCVE-2026-1490 · affects up to 6.71 · reported by WordfenceCritical 9.8
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS (PTR record) spoofing on the 'checkWithoutToken' function in all versions up to, and including, 6.71. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated. Note: This is only exploitable on sites with an invalid API key.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Dec 13, 2024Spam protection, AntiSpam, FireWall by CleanTalk: Missing AuthorizationCVE-2023-33996 · affects up to 6.10 · reported by PatchstackHigh 8.8
Missing Authorization vulnerability in СleanTalk - Anti-Spam Protection Spam protection, AntiSpam, FireWall by CleanTalk allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Spam protection, AntiSpam, FireWall by CleanTalk: from n/a through 6.10.
Nov 26, 2024Spam protection, Anti-Spam, FireWall by CleanTalk: Unauthorized Arbitrary Plugin InstallationCVE-2024-10781 · affects up to 6.44 · reported by WordfenceHigh 8.1
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an missing empty value check on the 'api_key' value in the 'perform' function in all versions up to, and including, 6.44. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Nov 26, 2024Spam protection, Anti-Spam, FireWall by CleanTalk: Unauthorized Arbitrary Plugin InstallationCVE-2024-10542 · affects up to 6.43.2 · reported by WordfenceCritical 9.8
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS spoofing on the checkWithoutToken function in all versions up to, and including, 6.43.2. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Feb 29, 2024Spam protection, Anti-Spam, FireWall by CleanTalk: Cross-Site Request Forgery (CSRF)CVE-2023-51696 · affects up to 6.20 · reported by PatchstackMedium 4.3
Cross-Site Request Forgery (CSRF) vulnerability in СleanTalk - Anti-Spam Protection Spam protection, Anti-Spam, FireWall by CleanTalk.This issue affects Spam protection, Anti-Spam, FireWall by CleanTalk: from n/a through 6.20.
Jan 5, 2024Spam protection, Anti-Spam, FireWall by CleanTalk: Cross-Site Request Forgery (CSRF)CVE-2023-51535 · affects up to 6.20 · reported by PatchstackMedium 4.3
Cross-Site Request Forgery (CSRF) vulnerability in СleanTalk - Anti-Spam Protection Spam protection, Anti-Spam, FireWall by CleanTalk.This issue affects Spam protection, Anti-Spam, FireWall by CleanTalk: from n/a through 6.20.
Oct 25, 2022Spam protection, AntiSpam, FireWall by CleanTalk: Does not validate ids before using them in a SQL statementCVE-2022-3302 · fixed in 5.185.1 · reported by WPScanHigh 7.2
The Spam protection, AntiSpam, FireWall by CleanTalk WordPress plugin before 5.185.1 does not validate ids before using them in a SQL statement, which could lead to SQL injection exploitable by high privilege users such as admin
May 17, 2021It was possible to exploit an Unauthenticated Time-Based Blind SQL Injection vulnerability in the Spam protection, AntiSpam, FireWall by CleanTalk WordPress PluCVE-2021-24295 · fixed in 5.153.4 · reported by WPScanHigh 7.5
It was possible to exploit an Unauthenticated Time-Based Blind SQL Injection vulnerability in the Spam protection, AntiSpam, FireWall by CleanTalk WordPress Plugin before 5.153.4. The update_log function in lib/Cleantalk/ApbctWP/Firewall/SFW.php included a vulnerable query that could be injected via the User-Agent Header by manipulating the cookies set by the Spam protection, AntiSpam, FireWall by CleanTalk WordPress plugin before 5.153.4, sending an initial request to obtain a ct_sfw_pass_key cookie and then manually setting a separate ct_sfw_passed cookie and disallowing it from being reset.
Mar 18, 2021Unvalidated input in the Anti-Spam by CleanTalk WordPress plugin, versions before 5.149, lead to multiple authenticated SQL injection vulnerabilities, however, CVE-2021-24131 · fixed in 5.149 · reported by WPScanHigh 7.2
Unvalidated input in the Anti-Spam by CleanTalk WordPress plugin, versions before 5.149, lead to multiple authenticated SQL injection vulnerabilities, however, it requires high privilege user (admin+).
Nov 13, 2019The CleanTalk cleantalk-spam-protect plugin before 5.127.4 for WordPress is affected by: Cross Site Scripting (XSS).CVE-2019-17515 · fixed in 5.127.4 · reported by MITREMedium 6.1
The CleanTalk cleantalk-spam-protect plugin before 5.127.4 for WordPress is affected by: Cross Site Scripting (XSS). The impact is: Allows an attacker to execute arbitrary HTML and JavaScript code via the from or till parameter. The component is: inc/cleantalk-users.php and inc/cleantalk-comments.php. The attack vector is: When the Administrator is logged in, a reflected XSS may execute upon a click on a malicious URL.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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