Vulnerability Description
OpenClaw Dashboard v3.0.0 contains a stored cross-site scripting vulnerability that allows unauthenticated remote attackers to inject arbitrary HTML and script payloads by submitting a crafted username in a failed login POST request, which is recorded verbatim in the audit log. When an administrator opens the notification panel, the unescaped log entry is rendered via innerHTML with a permissive Content-Security-Policy allowing inline event handlers, enabling the attacker-supplied payload to execute in the administrator's session and interact with authenticated endpoints including agent instruction file editing and configuration changes.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/theopaid/Unauthenticated-Stored-Cross-Site-Scripting-Leading-
- https://github.com/tugcantopaloglu/openclaw-dashboard
- https://www.vulncheck.com/advisories/openclaw-dashboard-stored-xss-via-failed-lo
- https://github.com/theopaid/Unauthenticated-Stored-Cross-Site-Scripting-Leading-
FAQ
What is CVE-2026-66418?
CVE-2026-66418 is a vulnerability with a CVSS score of 9.3 (CRITICAL). OpenClaw Dashboard v3.0.0 contains a stored cross-site scripting vulnerability that allows unauthenticated remote attackers to inject arbitrary HTML and script payloads by submitting a crafted usernam...
How severe is CVE-2026-66418?
CVE-2026-66418 has been rated CRITICAL with a CVSS base score of 9.3/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-66418?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.