Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WatchGuard | Fireware OS | 12.0 – < 12.11.3, 12.0 – < 12.5.13 | 12.11.3 |
Advisories 1
- WID-SEC-2025-1528 WatchGuard Firebox: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 4, 2025
References
- https://psirt.watchguard.com/CVE-2025-6947 vendor-advisory
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00012 vendor-advisory