{"schema":"threatline.record/2","record":{"id":"CVE-2026-108725","aliases":[],"summary":"Cheshire Cat AI core through 2.0.23 Stored XSS via uploads plugin","details":"Cheshire Cat AI core through 2.0.23 contains a stored cross-site scripting vulnerability in the uploads plugin that allows authenticated users to upload HTML files via POST /uploads without type restrictions. Attackers can send the public GET /uploads/{path} URL to a signed-in victim, executing script in the application origin with the victim's access_token cookie, including administrators.","categories":["Unclassified"],"product":"core","vendor":"cheshire-cat-ai","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-108725","source_modified_at":"2026-10-13T13:18:28.253Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"core","vendor":"cheshire-cat-ai","versions":[{"version":"0","lessThanOrEqual":"2.0.23","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":5.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00215,"percentile":0.11314,"score_date":"2026-10-23"},"published_at":"2026-10-11T12:19:34.601Z","modified_at":"2026-10-13T13:18:28.253Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-108725","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T13:18:28.253Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-108725","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind03/cheshire-cat-uploads-stored-html-same-origin-xss","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/cheshire-cat-ai/core/blob/c22731e7009ac89835b1d7b1cabc5989d998ec3e/src/cat/scaffold/plugins/uploads/endpoints.py#L28-L96","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/cheshire-cat-ai/core","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/cheshire-cat-ai-core-through-2.0.23-stored-xss-via-uploads-plugin","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-13T13:18:05.919586Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T13:18:28.253Z","content_hash":"85d942f6295dedf94dd342b4a266d1f15517f3888b394b03a420763a18d40b03"}}