CVE-2026-21631

Joomla! Core - [20260303] - XSS vector in com_associations comparison view

CVSS 5.9 MEDIUMEPSS 0.2%CWE-79

Lack of output escaping leads to a XSS vector in the multilingual associations component.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U

Affected products

Joomla! Project · Joomla! CMS

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References

https://developer.joomla.org/security-centre/1029-20260303-core-xss-vector-in-com-associations-comparison-view.html https://github.com/Shirshaw64p/security-advisories/tree/main/CVE-2026-21631