Spam protection, Anti-Spam, FireWall by CleanTalk <= 6.44 - Authorization Bypass due to Missing Empty Value Check to Unauthenticated Arbitrary Plugin Installation

8.1
Improper Check or Handling of Exceptional Conditions
CVE CVE-2024-10781
CVSS 8.1 (High)
Publicly Published November 25, 2024
Last Updated November 26, 2024
Researcher István Márton - Wordfence

Description

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.

Wordfence blocked 3 attacks targeting this vulnerability in the past 24 hours.

References

Share

Vulnerability Details for CleanTalk Anti-Spam. Spam Firewall & Bot protection

Software Type Plugin
Software Slug cleantalk-spam-protect (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.45, or a newer patched version
Affected Version
  • <= 6.44
Patched Version
  • 6.45

Recent vulnerabilities in CleanTalk Anti-Spam. Spam Firewall & Bot protection

# Title CVE ID CVSS Researchers Date
1 CleanTalk Anti-Spam. Spam Firewall & Bot protection < 6.79 - Unauthenticated Stored Cross-Site Scripting CVE-2026-8071 7.2 stealthcopter June 11, 2026
2 Spam protection, Honeypot, Anti-Spam by CleanTalk <= 6.71 - Authorization Bypass via Reverse DNS (PTR record) Spoofing to Unauthenticated Arbitrary Plugin Installation CVE-2026-1490 9.8 Nguyen Ngoc Duc (duc193) February 14, 2026
3 Spam protection, Anti-Spam, FireWall by CleanTalk <= 6.43.2 - Authorization Bypass via Reverse DNS Spoofing to Unauthenticated Arbitrary Plugin Installation CVE-2024-10542 9.8 mikemyers November 25, 2024
4 Spam protection, AntiSpam, FireWall by CleanTalk <= 6.20 - Cross-Site Request Forgery CVE-2023-51535 4.3 Brandon James Roldan (tomorrowisnew) December 27, 2023
5 Spam protection, AntiSpam, FireWall by CleanTalk <= 6.20 - Cross-Site Request Forgery via apbct_settings__update_account_email CVE-2023-51696 4.3 Elliot December 27, 2023
6 Spam protection, AntiSpam, FireWall by CleanTalk <= 6.10 - Missing Authorization CVE-2023-33996 6.3 Rafshanzani Suhada June 22, 2023
7 AntiSpam by CleanTalk <= 5.185 - Authenticated (Administrator+) SQL Injection CVE-2022-3302 7.2 Nguyen Duy Quoc Khanh October 3, 2022
8 Spam protection, AntiSpam, FireWall by CleanTalk <= 5.173 - Reflected Cross-Site Scripting CVE-2022-28222 6.1 Ram March 30, 2022
9 Spam protection, AntiSpam, FireWall by CleanTalk <= 5.173 - Reflected Cross-Site Scripting CVE-2022-28221 6.1 Ram March 30, 2022
10 Spam protection, AntiSpam, FireWall by CleanTalk <= 5.153.3 - Unauthenticated Blind SQL Injection CVE-2021-24295 7.5 Ram March 5, 2021

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation