{"id":"CVE-2026-116883","title":"Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions","summary":"Semantic MediaWiki from 3.1.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows authenticated schema editors to inject HTML through schema descriptions. Attackers with the smw-schemaedit permission can save HT…","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"SemanticMediaWiki","product":"SemanticMediaWiki","affected":["SemanticMediaWiki >= 3.1.0 < 7.3.1"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T10:26:46.130Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116883","references":[{"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m","label":"GitHub Security Advisory (GHSA-2xr9-cr6h-wr6m)"},{"url":"https://www.vulncheck.com/advisories/semantic-mediawiki-3.1.0-before-7.3.1-stored-xss-via-schema-descriptions","label":"VulnCheck Advisory: Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.290Z","slug":"CVE-2026-116883","body":"## Overview\n\nSemantic MediaWiki from 3.1.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows authenticated schema editors to inject HTML through schema descriptions. Attackers with the smw-schemaedit permission can save HTML that is passed unescaped to Html::rawElement() in HtmlBuilder, altering pages and targeting users who view the schema.\n\n## Affected\n\n- `SemanticMediaWiki >= 3.1.0 < 7.3.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}