{"affected":[{"defaultStatus":"unaffected","ecosystem":"composer","packageName":"mediawiki/semantic-media-wiki","product":"SemanticMediaWiki","source":"CNA: VulnCheck","vendor":"SemanticMediaWiki","versions":[{"lessThan":"7.4.1","status":"affected","version":"7.3.1","versionType":"semver"},{"status":"unaffected","version":"7.4.1","versionType":"semver"}]}],"cveId":"CVE-2026-126566","cwes":["CWE-863"],"description":"Semantic MediaWiki 7.3.1 before 7.4.1 contains an incorrect authorization vulnerability in EditProtectionUpdater::userMayChangeProtection() that checks protection changes against the page's latest revision author. Editors can add {{#set:Is edit protected=false}} to a transcluded template, removing administrator edit and move protection logged under the administrator's name.","epss":{"date":"2026-11-13","percentile":0.33796,"score":0.00392},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-gh59-2vh3-6cgm"}],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},{"score":7.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/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":7.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"}],"modifiedAt":1794626199768,"publishedAt":1794364564046,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-gh59-2vh3-6cgm"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/32ca6d8fc75735aa7a2ecc573886391da126da9b"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.4.1"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/Protection/EditProtectionUpdater.php#L147-L200"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/DataUpdater.php#L360-L375"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.1-before-7.4.1-incorrect-authorization-via-edit-protection-annotations"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-gh59-2vh3-6cgm"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/DataUpdater.php#L360-L375"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/Protection/EditProtectionUpdater.php#L147-L200"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/32ca6d8fc75735aa7a2ecc573886391da126da9b"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.4.1"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-gh59-2vh3-6cgm"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.1-before-7.4.1-incorrect-authorization-via-edit-protection-annotations"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/32ca6d8fc75735aa7a2ecc573886391da126da9b"}],"revision":"88caa202fa2ebec5f2bedd7cd124079641dd9c8d39d5a7a2b361143e6761d33d","sources":[{"modifiedAt":1794626199768,"name":"CNA: VulnCheck","retrievedAt":1794629322849,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126566"},{"modifiedAt":1794519023870,"name":"NVD","retrievedAt":1794529341016,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126566"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794629327002,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-126566"}],"ssvc":{"assessedAt":1794626178852,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Semantic MediaWiki 7.3.1 before 7.4.1 Incorrect Authorization via Edit Protection Annotations","updatedAt":1794629327002}