Vulnerability Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in victim browsers via Server-Sent Event (SSE) execute events. This leads to authentication token theft, complete account takeover, and when chained with the Functions API, enables remote code execution on the backend server. The attack requires the victim to enable Direct Connections (disabled by default) and add the attacker's malicious model URL, achievable through social engineering of the admin and subsequent users. This issue is fixed in version 0.6.35.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openwebui | Open Webui | < 0.6.35 |
Related Weaknesses (CWE)
References
- https://github.com/open-webui/open-webui/commit/8af6a4cf21b756a66cd58378a01c60f7Patch
- https://github.com/open-webui/open-webui/security/advisories/GHSA-cm35-v4vp-5xvxExploitThird Party Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-cm35-v4vp-5xvxExploitThird Party Advisory
FAQ
What is CVE-2025-64496?
CVE-2025-64496 is a vulnerability with a CVSS score of 7.3 (HIGH). Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature t...
How severe is CVE-2025-64496?
CVE-2025-64496 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-64496?
Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.