CVE-2026-21631

EUVD-2026-17857
Lack of output escaping leads to a XSS vector in the multilingual associations component.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
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