What’s Vulnerable › Vulnerabilities

CVE-2026-66418: OpenClaw Dashboard v3.0.0 Stored XSS via Failed Login Username Field

• Severity: critical (CVSS 9.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-07-30 · updated 2026-10-23
• Weakness: CWE-79

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.

Affected products

• tugcantopaloglu openclaw-dashboard: through 3.0.0

References

• https://github.com/theopaid/Unauthenticated-Stored-Cross-Site-Scripting-Leading-To-Administrator-Account-Takeover
• https://github.com/tugcantopaloglu/openclaw-dashboard
• https://www.vulncheck.com/advisories/openclaw-dashboard-stored-xss-via-failed-login-username-field
• https://github.com/theopaid/Unauthenticated-Stored-Cross-Site-Scripting-Leading-To-Administrator-Account-Takeover

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