{"schema":"threatline.record/2","record":{"id":"CVE-2026-109291","aliases":["GHSA-qpqv-xwg8-cqpj"],"summary":"Open WebUI 0.6.33 before 0.11.4 Stored XSS via Citation embed_url","details":"Open WebUI from 0.6.33 before 0.11.4 contains a cross-site scripting vulnerability that allows authenticated users to execute script in victims' sessions by storing javascript: URLs in citation embed_url fields. Attackers can share a crafted chat whose citation, when clicked, is passed to window.open, letting them steal localStorage.token and act as the victim.","categories":["Unclassified"],"product":"open-webui","vendor":"open-webui","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109291","source_modified_at":"2026-10-23T21:57:54.568Z","fetched_at":"2026-10-23T22:01:05.715934Z","product":"open-webui","vendor":"open-webui","versions":[{"version":"0.6.33","status":"affected","versionType":"semver","lessThan":"0.11.4"},{"version":"0.11.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109291","source_modified_at":"2026-10-23T21:57:54.568Z","fetched_at":"2026-10-23T22:01:05.715934Z","package":{"name":"open-webui","ecosystem":null},"version":"0.11.4","basis":"first unaffected version stated in the CVE record"}],"cvss":8.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00279,"percentile":0.19288,"score_date":"2026-10-23"},"published_at":"2026-10-12T16:04:52.313Z","modified_at":"2026-10-23T21:57:54.568Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109291","fetched_at":"2026-10-23T22:01:05.715934Z","source_modified_at":"2026-10-23T21:57:54.568Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109291","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-qpqv-xwg8-cqpj","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/open-webui-0.6.33-before-0.11.4-stored-xss-via-citation-embed-url","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-18T11:49:46.474924Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T21:57:54.568Z","content_hash":"48a376e71003e7573a28850ab6f0e4b1737ad5fa1b61eb960e27b84a90902f58"}}