Vulnerability · Published Nov 26, 2024 · Assigned by Wordfence
CVE-2024-10542Spam protection, Anti-Spam, FireWall by CleanTalk <= 6.43.2 - Authorization Bypass via Reverse DNS Spoofing to Unauthenticated Arbitrary Plugin Installation
Critical 9.8
In plain English
A critical-severity missing authorization in Spam protection, Honeypot, Anti-Spam by CleanTalk from cleantalk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 15.4% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| cleantalk | Spam protection, Honeypot, Anti-Spam by CleanTalk | 0 – through 6.43.2 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d7eb5fad-bb62-4f0b-ad52-b16c3e442b62?source=cve
- https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.43.2/lib/Cleantalk/ApbctWP/RemoteCalls.php#L41
- https://plugins.trac.wordpress.org/changeset/3179819/cleantalk-spam-protect#file631