What is CVE-2026-66421?

CVE-2026-66421 is a critical-severity vulnerability in Tugcantopaloglu Openclaw-dashboard, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-07-30.

How severe is CVE-2026-66421?

Critical severity. CVSS v3 base score is 9.3 out of 10.

XSS in Tugcantopaloglu Openclaw-dashboard

CVE-2026-66421

OpenClaw Dashboard contains a stored cross-site scripting vulnerability that allows unauthenticated remote attackers to execute arbitrary JavaScript in the administrator's browser session by injecting HTML markup into agent transcript mess…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.

Affected products

Tugcantopaloglu Openclaw-dashboard — versions 1.1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-66421?: CVE-2026-66421 is a critical-severity vulnerability in Tugcantopaloglu Openclaw-dashboard, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-07-30.
How severe is CVE-2026-66421?: Critical severity. CVSS v3 base score is 9.3 out of 10.