{"schema":"threatline.record/2","record":{"id":"CVE-2026-100238","aliases":[],"summary":"Flow colon-separator and flow-guidedtour-optin-welcome-description messages allow stored XSS","details":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS.\n\nThis issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.","categories":["Applications & CMS"],"product":"Mediawiki - Flow Extension","vendor":"Wikimedia Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100238","source_modified_at":"2026-09-30T20:11:08.570Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Mediawiki - Flow 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-2026-100238","source_modified_at":"2026-09-30T20:11:08.570Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Mediawiki - Flow 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":0.00188,"percentile":0.08,"score_date":"2026-10-23"},"published_at":"2026-09-29T16:12:06.871Z","modified_at":"2026-09-30T20:11:08.570Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100238","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-30T20:11:08.570Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100238","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/T432425"},{"source":"CVE List","url":"https://gerrit.wikimedia.org/r/q/Ic6149363fe1de2440240fe88aebfd4ae30cea606"}],"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":"2026-09-30T18:40:56.402418Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-30T20:11:08.570Z","content_hash":"bc1ba965093d0951e4dd2c1336b591e1f397905fa23532439a1c7ed7bedbe123"}}