{"affected":[{"defaultStatus":"unaffected","product":"SemanticMediaWiki","source":"CNA: VulnCheck","vendor":"SemanticMediaWiki","versions":[{"lessThan":"7.2.1","status":"affected","version":"4.2.0","versionType":"semver"},{"status":"unaffected","version":"7.2.1","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"Packagist","packageName":"mediawiki/semantic-media-wiki","product":"mediawiki/semantic-media-wiki","source":"OSV GHSA-9rcc-pmj8-ffhr","vendor":"","versions":[{"status":"affected","version":"4.2.0","versionType":"Packagist"},{"status":"affected","version":"5.0.0","versionType":"Packagist"},{"status":"affected","version":"5.0.1","versionType":"Packagist"},{"status":"affected","version":"5.0.2","versionType":"Packagist"},{"status":"affected","version":"5.1.0","versionType":"Packagist"},{"status":"affected","version":"6.0.0","versionType":"Packagist"},{"status":"affected","version":"6.0.1","versionType":"Packagist"},{"status":"affected","version":"7.0.0","versionType":"Packagist"},{"status":"affected","version":"7.1.0","versionType":"Packagist"},{"status":"affected","version":"7.2.0","versionType":"Packagist"},{"events":[{"introduced":"4.2.0"},{"fixed":"7.2.1"}],"status":"unknown","version":"4.2.0","versionType":"ECOSYSTEM"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*:*:*:*:*:mediawiki:*:*","versionEndExcluding":"7.2.1","versionStartIncluding":"4.2.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-116891","cwes":["CWE-79"],"description":"SemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject HTML via unescaped cstate parameters in Special:FacetedSearch. Attackers can craft URLs with q, a matching crc32 csum or filtered=1, and cstate values that break out of hidden input attributes to execute script in victims' browsers.","epss":{"date":"2026-11-04","percentile":0.06902,"score":0.00174},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"},{"kind":"exploit","source":"disclosure@vulncheck.com","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"},{"kind":"exploit","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"}],"kev":null,"metrics":[{"score":5.1,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},{"score":6.1,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},{"score":5.1,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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":6.1,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1793809063930,"publishedAt":1793096619863,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/semanticmediawiki-4.2.0-before-7.2.1-reflected-xss-via-special-facetedsearch-cstate"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"},{"source":"disclosure@vulncheck.com","tags":["Exploit","Mitigation","Vendor Advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"},{"source":"disclosure@vulncheck.com","tags":["Third Party Advisory"],"url":"https://www.vulncheck.com/advisories/semanticmediawiki-4.2.0-before-7.2.1-reflected-xss-via-special-facetedsearch-cstate"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Mitigation","Vendor Advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr"},{"source":"OSV / GitHub Security Advisories","tags":["advisory"],"url":"https://github.com/advisories/GHSA-9rcc-pmj8-ffhr"},{"source":"OSV / GitHub Security Advisories","tags":["osv"],"url":"https://osv.dev/vulnerability/GHSA-9rcc-pmj8-ffhr"}],"remediation":[{"kind":"fix","source":"OSV GHSA-9rcc-pmj8-ffhr","text":"mediawiki/semantic-media-wiki (Packagist): OSV reports a fixed version 7.2.1. Check the advisory for supported release branches.","url":"https://github.com/advisories/GHSA-9rcc-pmj8-ffhr"}],"revision":"07c54617a08b2bb2f9ed44e65cd5efca70d560af164e72e46664bb0442194e3d","sources":[{"modifiedAt":1793808589973,"name":"CNA: VulnCheck","retrievedAt":1793812157784,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116891"},{"modifiedAt":1793809063930,"name":"NVD","retrievedAt":1793816525483,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116891"},{"modifiedAt":1793157067843,"name":"OSV / GitHub Security Advisories","retrievedAt":1793812158290,"url":"https://osv.dev/vulnerability/GHSA-9rcc-pmj8-ffhr"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812159511,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116891"}],"ssvc":{"assessedAt":1793808583792,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"SemanticMediaWiki 4.2.0 before 7.2.1 Reflected XSS via Special:FacetedSearch cstate","updatedAt":1793816525483}