{"id":"GHSA-fm22-g2q9-j3pw","aliases":["CVE-2025-54476"],"title":"Joomla! CMS vulnerable to XSS via the input filter","description":"Improper handling of input could lead to a cross-site scripting (XSS) vector in the checkAttribute method of the input filter framework class.","severity":"medium","score":4.8,"published":"2025-09-30T18:30:24.000Z","modified":"2025-10-01T19:42:32.140Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"joomla/filter","ranges":[{"events":[{"introduced":"4.0.0"},{"fixed":"4.0.1"}],"type":"ECOSYSTEM"}],"versions":["4.0.0"],"fixed":["4.0.1"]},{"ecosystem":"Packagist","name":"joomla/filter","ranges":[{"events":[{"introduced":"3.0.0"},{"fixed":"3.0.5"}],"type":"ECOSYSTEM"}],"versions":["3.0.0","3.0.1","3.0.2","3.0.3","3.0.4"],"fixed":["3.0.5"]},{"ecosystem":"Packagist","name":"joomla/filter","ranges":[{"events":[{"introduced":"0"},{"fixed":"2.0.6"}],"type":"ECOSYSTEM"}],"versions":["1.0","1.0-alpha","1.0-beta","1.0-beta2","1.0-beta3","1.1.0","1.1.1","1.1.2","1.1.3","1.1.4","1.1.5","1.1.6","1.2.0","1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5","1.4.0","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.4.7","2.0.0","2.0.0-beta","2.0.0-beta2","2.0.0-beta3","2.0.0-beta4","2.0.0-beta5","2.0.0-rc","2.0.1","2.0.2","2.0.3","2.0.4","2.0.5"],"fixed":["2.0.6"]}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2025-54476","https://github.com/joomla-framework/filter/commit/188dd3fccd6fa0532d105a52736affdf6b166217","https://github.com/joomla-framework/filter/commit/852c7e101c649500d3af58ffb8baf15d7c86d825","https://github.com/joomla-framework/filter/commit/fcde280785f188e93530f7da68102f7dd8f9f723","https://developer.joomla.org/security-centre/1010-20250901-core-inadequate-content-filtering-within-the-checkattribute-filter-code.html","https://github.com/joomla/joomla-cms"],"sources":[{"name":"OSV","id":"GHSA-fm22-g2q9-j3pw","modified":"2025-10-01T19:42:32.140260Z","url":"https://osv.dev/vulnerability/GHSA-fm22-g2q9-j3pw"}],"assessments":[{"source":"OSV","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","score":4.8}]}