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Description

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

PUBLISHED Reserved 2026-01-01 | Published 2026-04-01 | Updated 2026-04-02 | Assigner Joomla




MEDIUM: 5.9CVSS: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

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

4.0.0-5.4.3
affected

6.0.0-6.0.3
affected

Credits

Shirsendu Mondal & Md Tanzimul Alam Fahim, UNC Pembroke finder

References

developer.joomla.org/...om-associations-comparison-view.html vendor-advisory

github.com/...p/security-advisories/tree/main/CVE-2026-21631 third-party-advisory

cve.org (CVE-2026-21631)

nvd.nist.gov (CVE-2026-21631)

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