What is CVE-2025-6947?

CVE-2025-6947 is a vulnerability in Watchguard Fireware Os, classified under Cross-site Scripting. Published 2025-09-15.

Is CVE-2025-6947 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Watchguard Fireware Os

CVE-2025-6947

A stored cross-site scripting (XSS) vulnerability exists in the management interface of WatchGuard Firebox appliances via the SIP Proxy configuration. An authenticated remote attacker with administrator privileges could exploit this vulnerability to execute arbitrary JavaScript code in the Firebox management interface of another management user.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (26.7th percentile) — read the EPSS interpretation.

Affected products

Watchguard Fireware Os — versions 12.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)
5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)

Frequently asked questions

What is CVE-2025-6947?: CVE-2025-6947 is a vulnerability in Watchguard Fireware Os, classified under Cross-site Scripting. Published 2025-09-15.
Is CVE-2025-6947 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.