CVE-2026-66418
High
High exploit probability or critical severity with a known exploit.
CVSS base
9.3
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
EPSS — probability of exploitation (30 days)
0.5%
42.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-79
Published 2026-07-30 · modified 2026-09-03
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
References
- exploit https://github.com/theopaid/Unauthenticated-Stored-Cross-Site-Scripting-Leading-To-Administrator-Account-Takeover
- https://github.com/tugcantopaloglu/openclaw-dashboard
- exploit https://www.vulncheck.com/advisories/openclaw-dashboard-stored-xss-via-failed-login-username-field
- exploit https://github.com/theopaid/Unauthenticated-Stored-Cross-Site-Scripting-Leading-To-Administrator-Account-Takeover