CVE-2026-92231

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.

  • Published Sep 29, 2026
  • CVSS 7.1 high
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-92231 at the National Vulnerability Database