XSS in Tugcantopaloglu Openclaw Agent Dashboard
CVE-2026-66418
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (42.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Exploit, vendor-advisory, Third Party Advisory, Mitigation)
- disclosure@vulncheck.com (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-66418?
- CVE-2026-66418 is a critical-severity vulnerability in Tugcantopaloglu Openclaw Agent Dashboard, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-07-30.
- How severe is CVE-2026-66418?
- Critical severity. CVSS v3 base score is 9.3 out of 10.
- Is CVE-2026-66418 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.