{"schema":"threatline.record/2","record":{"id":"CVE-2026-100243","aliases":[],"summary":"Stored XSS in WikiSEO author and image properties on action=info","details":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiSEO Extension allows Stored XSS.\n\nThis issue affects Mediawiki - WikiSEO Extension: from * before 1.46.1, 1.45.5, 1.43.10.","categories":["Applications & CMS"],"product":"Mediawiki - WikiSEO Extension","vendor":"Wikimedia Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100243","source_modified_at":"2026-09-30T20:45:04.917Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Mediawiki - WikiSEO Extension","vendor":"Wikimedia Foundation","versions":[{"status":"affected","version":"*","lessThan":"1.46.1, 1.45.5, 1.43.10","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100243","source_modified_at":"2026-09-30T20:45:04.917Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Mediawiki - WikiSEO Extension","ecosystem":null},"version":"1.46.1, 1.45.5, 1.43.10","basis":"first unaffected version stated in the CVE record"}],"cvss":6.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00155,"percentile":0.04251,"score_date":"2026-10-23"},"published_at":"2026-09-29T16:43:00.209Z","modified_at":"2026-09-30T20:45:04.917Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100243","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-30T20:45:04.917Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100243","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://phabricator.wikimedia.org/T430896"},{"source":"CVE List","url":"https://gerrit.wikimedia.org/r/q/Iff6ef320017649750e5c6723a91ee298eb97a408"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-30T20:44:39.532343Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-30T20:45:04.917Z","content_hash":"c9953d69640982d252cdb6d30cd8d54d0d6aea41ac400db5498154bac619ccfb"}}