CVE-2024-10542: Cleantalk Anti-Spam

High severity, CVSS 7.5. EPSS: 15.4% chance of exploitation in the next 30 days.

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.

Affected products

• Cleantalk Anti-Spam: before 6.44 (fixed in 6.44)

Published 2024-11-26. Last modified 2026-06-17.