{"id":"CVE-2026-116883","aliases":[],"title":"Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"SemanticMediaWiki","name":"SemanticMediaWiki","platforms":[],"versions":[{"version":"3.1.0","status":"affected","lessThan":"7.3.1","versionType":"semver"},{"version":"7.3.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116883"}],"remediation":[],"description":"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 HTML that is passed unescaped to Html::rawElement() in HtmlBuilder, altering pages and targeting users who view the schema.","severity":"medium","score":4.8,"published":"2026-10-27T10:23:34.396Z","modified":"2026-10-27T10:26:46.130Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m","https://www.vulncheck.com/advisories/semantic-mediawiki-3.1.0-before-7.3.1-stored-xss-via-schema-descriptions"],"sources":[{"name":"CVE","id":"CVE-2026-116883","modified":"2026-10-27T10:26:46.130Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116883"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":4.8},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","score":4.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:10:32.935Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}