Security Advisory

CVE-2026-1490

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-15 02:22:56

Last updated 2026-04-08 17:23:28

Assigner Wordfence

State PUBLISHED

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 (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.

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