XSS in Watchguard Fireware OS
CVE-2025-1239
A stored cross-site scripting (XSS) vulnerability exists in the management interface of WatchGuard Firebox appliances via the Blocked Sites list. 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: 0.004 (34.7th percentile) — read the EPSS interpretation.
Affected products
- Watchguard Fireware Os — versions 12.0, 12.6
Weakness classification (CWE)
References
- 5d1c2695-1a31-4499-88ae-e847036fd7e3
- 5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)