{"affected":[{"defaultStatus":"unaffected","product":"SemanticMediaWiki","source":"CNA: VulnCheck","vendor":"SemanticMediaWiki","versions":[{"lessThan":"7.3.1","status":"affected","version":"3.1.0","versionType":"semver"},{"status":"unaffected","version":"7.3.1","versionType":"semver"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*:*:*:*:*:mediawiki:*:*","versionEndExcluding":"7.3.1","versionStartIncluding":"3.1.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-116883","cwes":["CWE-79"],"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.","epss":{"date":"2026-11-04","percentile":0.04023,"score":0.00148},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"},{"kind":"exploit","source":"disclosure@vulncheck.com","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"},{"kind":"exploit","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"}],"kev":null,"metrics":[{"score":4.8,"severity":"medium","source":"CNA: 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","version":"4.0"},{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},{"score":4.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":4.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1793812650107,"publishedAt":1793096614396,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/semantic-mediawiki-3.1.0-before-7.3.1-stored-xss-via-schema-descriptions"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"},{"source":"disclosure@vulncheck.com","tags":["Exploit","Mitigation","Vendor Advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"},{"source":"disclosure@vulncheck.com","tags":["Third Party Advisory"],"url":"https://www.vulncheck.com/advisories/semantic-mediawiki-3.1.0-before-7.3.1-stored-xss-via-schema-descriptions"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Mitigation","Vendor Advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2xr9-cr6h-wr6m"}],"remediation":[],"revision":"e8e1e47306d86fec3a3508c7bc6374a9209b5165f394615e271df53a145070a9","sources":[{"modifiedAt":1793810734719,"name":"CNA: VulnCheck","retrievedAt":1793812155296,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116883"},{"modifiedAt":1793812650107,"name":"NVD","retrievedAt":1793816523093,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116883"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812159707,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116883"}],"ssvc":{"assessedAt":1793810726646,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions","updatedAt":1793816523093}