MxChat <= 3.2.25 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'feedback' Parameter via mxchat_save_rating

Summary

The MxChat – AI Chatbot & Content Generation for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'feedback' parameter in all versions up to, and including, 3.2.25 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The stored payload is written by any unauthenticated visitor via a single POST to admin-ajax.php and detonates automatically when any administrator next loads the Transcripts page.

Timeline

1. Oct 28, 2026, 6:45 AM UTCCVE published
2. Oct 28, 2026, 6:54 AM UTCFirst seen by cve.now
3. Oct 29, 2026, 1:35 AM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

4. Oct 29, 2026, 1:41 AM UTCRecord last updated

Affected versions

• mxchat MxChat – AI Chatbot & Content Generation for WordPress

  through 3.2.25

References 7