CVE-2025-64496

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 attackers malicious model URL, achievable through social engineering of the admin and subsequent users. This issue is fixed in version 0.6.35.

Risk Information

Base Score

8.0

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.171

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2025-64495,CVE-2025-64496 are fixed in Python-open-webui 0.6.35	Windows
Vulnerabilities CVE-2025-64495,CVE-2025-64496 are fixed in Python-open-webui for linux 0.6.35	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234