CVE-2026-66418CWE-79cross-site-scripting

CVE-2026-66418

Critical · published July 31, 2026

CVSS v3.1
9.3
EPSS
1%
Percentile
49.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.3 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00633 · 49.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-31T01:18Z
Affected products (1)
ProductVersionsFixed in
tugcantopaloglu/openclaw_agent_dashboard≤ 3.0.0—
References (4)
EPSS history
Timeline
  • 30 JUL 20:55Z
    OpenClaw Dashboard v3.0.0 Stored XSS via Failed Login Username Field
    cvelistv5