MinorCritical vulnerability

CVE-2026-92231 (CVSS 7.1)

NVD · officialPublished Sep 29, 2026Risk 23/100

Joomla! Core - [20260915] - Core - XSS filter bypass in InputFilter via HTML5 entity decode mismatch in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - The checkAttribute method normalized an attribute value before testing it against the "javascript:" scheme regex, however without decoding HTML5 entities beforehand, causing an XSS vector.

Technical details

CVSS

7.1

AV:NetworkAC:LowPR:HighUI:Passive

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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