CVEvulnerability

CVE-2025-64496

8.0 HIGH Published 2025-11-08 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-11-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
8.0 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-501, CWE-829, CWE-830, CWE-95

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.

Affected configurations

• openwebui open webui (< 0.6.35)

Related

Weakness · CWE (4)

  • CWE-501 Trust Boundary Violation weakness
  • CWE-829 Inclusion of Functionality from Untrusted Control Sphere weakness
  • CWE-830 Inclusion of Web Functionality from an Untrusted Source weakness
  • CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code weakness

References