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.
CVE-2025-46571
This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EPSS
- 22.1%
- KEV
- Not listed
Published
May 5, 2025
Last Modified
June 17, 2025
References (3)
- security-advisories@githubhttps://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438
- security-advisories@githubhttps://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0
- security-advisories@githubhttps://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x
Vendor Advisories for CVE-2025-46571(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| open-webui | 0.1.124 ... 0.6.6.dev1 (97 versions) | 0.6.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 48× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-07 02:21 UTCOSV refresh
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- 2026-06-18 13:35 UTCOSV refresh
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- 2026-05-30 06:07 UTCEG score recompute
- 2026-05-29 13:44 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-46571?
When was CVE-2025-46571 disclosed?
Is CVE-2025-46571 actively exploited?
What is the CVSS score of CVE-2025-46571?
How do I remediate CVE-2025-46571?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-46571
Is Your Infrastructure Affected by CVE-2025-46571?
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