{"id":"CVE-2025-46571","aliases":["GHSA-8gh5-qqh8-hq3x","PYSEC-2026-2713"],"url":"https://o3.security/vulnerability/CVE-2025-46571","summary":"Open WebUI vulnerable to limited stored XSS vila uploaded html file","details":"Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, low privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user's browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin's account, ultimately enabling RCE via functions. Version 0.6.6 contains a fix for the issue.","published":"2025-05-05T18:45:29.718Z","modified":"2026-08-12T03:51:25.726046464Z","cvss":null,"epss":{"score":0.00353,"percentile":0.28368,"asOf":"2026-09-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"open-webui","fixedVersion":"0.6.6"}],"fix":{"url":"https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0","label":"open-webui/open-webui@ef2aeb7"},"references":[{"type":"WEB","url":"https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/46xxx/CVE-2025-46571.json"},{"type":"ADVISORY","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46571"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:25.726046464Z"}}