{"id":"CVE-2026-92231","state":"PUBLISHED","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","description":"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.","publishedAt":"2026-09-29T16:40:58.165Z","updatedAt":"2026-09-30T16:08:04.934Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"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","source":"Joomla"},"assigner":"Joomla","products":["Joomla! Project Joomla! CMS","Joomla! Project Joomla! Framework Filter package"],"affected":[{"vendor":"Joomla! Project","product":"Joomla! CMS","defaultStatus":"unaffected","versions":[{"version":"1.5.0-5.4.8","status":"affected"},{"version":"6.0.0-6.1.3","status":"affected"}]},{"vendor":"Joomla! Project","product":"Joomla! Framework Filter package","defaultStatus":"unaffected","versions":[{"version":"1.0.0-3.0.6","status":"affected"},{"version":"4.0.0-4.1.0","status":"affected"}]}],"references":["https://www.joomla.org/","https://developer.joomla.org/security-centre/1095-20260915-core-xss-filter-bypass-in-inputfilter-via-html5-entity-decode-mismatch.html"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92231.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92231","state":"PUBLISHED","datePublished":"2026-09-29T16:40:58.165Z","dateUpdated":"2026-09-30T16:08:04.934Z","assignerShortName":"Joomla","assignerOrgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","dateReserved":"2026-09-15T19:14:31.224Z"},"containers":{"cna":{"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","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Joomla! Project","product":"Joomla! CMS","defaultStatus":"unaffected","versions":[{"version":"1.5.0-5.4.8","status":"affected"},{"version":"6.0.0-6.1.3","status":"affected"}]},{"vendor":"Joomla! Project","product":"Joomla! Framework Filter package","defaultStatus":"unaffected","versions":[{"version":"1.0.0-3.0.6","status":"affected"},{"version":"4.0.0-4.1.0","status":"affected"}]}],"references":[{"url":"https://www.joomla.org/","tags":["product"]},{"url":"https://developer.joomla.org/security-centre/1095-20260915-core-xss-filter-bypass-in-inputfilter-via-html5-entity-decode-mismatch.html","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Joomla","orgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","dateUpdated":"2026-09-30T16:08:04.934Z"},"credits":[{"lang":"en","type":"finder","value":"Netanel Stern"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-92231","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-09-30T15:10:16.956004Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-30T15:28:17.303Z"}}]}}}