{"schema":"threatline.record/2","record":{"id":"CVE-2026-100380","aliases":[],"summary":"Reflected XSS in Wikibase Special:SetLabel language validation","details":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).\n\nThis issue affects Mediawiki - Wikibase Extension: from * before 1.46.1, 1.45.5, 1.43.10.","categories":["Applications & CMS"],"product":"Mediawiki - Wikibase Extension","vendor":"Wikimedia Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100380","source_modified_at":"2026-09-26T22:51:17.986Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Mediawiki - Wikibase 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-2026-100380","source_modified_at":"2026-09-26T22:51:17.986Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Mediawiki - Wikibase Extension","ecosystem":null},"version":"1.46.1, 1.45.5, 1.43.10","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.0033,"percentile":0.24936,"score_date":"2026-10-23"},"published_at":"2026-09-25T20:58:24.004Z","modified_at":"2026-09-26T22:51:17.986Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100380","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-26T22:51:17.986Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100380","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/T434549"},{"source":"CVE List","url":"https://gerrit.wikimedia.org/r/q/I7407f9748d72161ce25ad0ba2446869bb1776857"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-26T22:43:05.441903Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-26T22:51:17.986Z","content_hash":"1420a36fde1446502c9715845a34b9dcb6b3713f5ce4dfc71bd1a38aba70001c"}}