{"id":"CVE-2026-92231","title":"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:\"…","summary":"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:\"…","severity":"high","cvss":7.1,"cvssVector":"CVSS: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:P","cwe":["CWE-79"],"vendor":"Joomla! Project","product":"Joomla! CMS","affected":["joomla_cms 1.5.0-5.4.8","joomla_cms 6.0.0-6.1.3","joomla_framework_filter_package 1.0.0-3.0.6","joomla_framework_filter_package 4.0.0-4.1.0"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T17:17:14.930","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92231","references":[{"url":"https://developer.joomla.org/security-centre/1095-20260915-core-xss-filter-bypass-in-inputfilter-via-html5-entity-decode-mismatch.html","label":"security@joomla.org"},{"url":"https://www.joomla.org/","label":"security@joomla.org"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-09-29T17:41:02.212Z","slug":"CVE-2026-92231","body":"## Overview\n\nJoomla! 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}