CVE-2026-21631 | Joomla CMS up to 5.4.3/6.0.3 Multilingual Associations cross site scripting

A vulnerability, which was classified as problematic, has been found in Joomla CMS up to 5.4.3/6.0.3. The affected element is an unknown function of the component Multilingual Associations. The manipulation leads to cross site scripting.

This vulnerability is referenced as CVE-2026-21631. Remote exploitation of the attack is possible. No exploit is available.