CVE-2025-64496

Summary

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 Software

VendorProductVersion RangeStatus
open-webuiopen-webui< 0.6.35affected

Weaknesses

  • CWE-95: CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
  • CWE-829: CWE-829: Inclusion of Functionality from Untrusted Control Sphere
  • CWE-830: CWE-830: Inclusion of Web Functionality from an Untrusted Source
  • CWE-501: CWE-501: Trust Boundary Violation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

References