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CVE-2026-1490

🚨 CRITICAL

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) spoof...

Published
Feb 15, 2026
Last Modified
Feb 15, 2026
Views
7
Bookmarks
0

Description

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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.

CVSS Scores

CVSS 3.1 9.8
9.8
CRITICAL
CVSS 2.0 9.8

References

plugins.trac.wordpress.org plugins.trac.wordpress.org plugins.trac.wordpress.org www.wordfence.com

Additional Information

Source
security@wordfence.com
State
Received

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