Joomla Multilingual Associations XSS via Unescaped Output
CVE-2026-21631 Published on April 1, 2026
Joomla! Core - [20260303] - XSS vector in com_associations comparison view
Lack of output escaping leads to a XSS vector in the multilingual associations component.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-21631 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-21631
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Affected Versions
Joomla! Project Joomla! CMS:- Version 4.0.0-5.4.3 is affected.
- Version 6.0.0-6.0.3 is affected.