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...

CVE-2026-92231

A Cross-Site Scripting (XSS) filter bypass exists in Joomla! Core versions 1.5.0-5.4.8 and 6.0.0-6.1.3 . The vulnerability resides in the InputFilter component's checkAttribute method, which fails to decode HTML5 entities before normalizing attribute values and testing them against the "javascrip...