CRITICALVulnerability

CVE-2026-66418

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.

Properties

severity
CRITICAL
score
9.3
cve_id
CVE-2026-66418
vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
published_at
2026-07-30T21:18:12.490
last_modified
2026-08-31T20:25:28.573

Related Entities (2)

HAS_WEAKNESS (1)

[Weakness]Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

DESCRIBED_BY (1)

[Source]NVD

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CVE-2026-66418 — Ninja Signal Threat Intelligence | Ninja Signal