CVE-2026-66418

CRITICAL 9.3

OpenClaw Dashboard v3.0.0 Stored XSS via Failed Login Username Field

CVSS Score

9.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	tugcantopaloglu
Product	openclaw-dashboard
Published	Jul 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

tugcantopaloglu / openclaw-dashboard

3.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 Theodosis Paidakis