CVE-2025-6946

UNKNOWN 0.0

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in IPS Configuration

CVSS Score

0.0

EPSS Score

0.2%

EPSS Percentile

8th

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

CWE	CWE-79
Vendor	watchguard
Product	fireware os
Published	Dec 4, 2025
Last Updated	Aug 8, 2026

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Affected Versions

WatchGuard / Fireware OS

12.0 < 12.11.3

WatchGuard / Fireware OS

12.0 < 12.5.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗

psirt.watchguard.com: https://psirt.watchguard.com/CVE-2025-6946 watchguard.com: https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00011

Credits

Simone Paganessi (https://www.linkedin.com/in/simonepaganessi)