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

CVSS 9.3 · Critical EPSS 0.34% · P27

Affected Version Matrix 1

VendorProductVersion RangeStatus
tugcantopalogluopenclaw-dashboard3.0.0affected
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I. Basic Information for CVE-2026-66418

Vulnerability Information
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Vulnerability Title
OpenClaw Dashboard v3.0.0 Stored XSS via Failed Login Username Field
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
tugcantopalogluopenclaw-dashboard 3.0.0 -

II. Public POCs for CVE-2026-66418

#POC DescriptionSource LinkShenlong Link
AI-Generated POCVerified env Premium
Qwen3.6-35B-A3B · 6249 chars
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III. Intelligence Information for CVE-2026-66418

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Vendor Advisories for CVE-2026-66418 (1)

Proof of Concept for CVE-2026-66418 (1)

IV. Related Vulnerabilities

Same product: openclaw-dashboard
Same vendor: tugcantopaloglu
Same weakness: CWE-79

V. Comments for CVE-2026-66418

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