CVE-2025-6947

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

State: Published
Severity: 4.8 Medium
Published: Sep 15, 2025
Updated: Aug 7, 2026
Reserved: Jul 1, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N	WatchGuard

Weaknesses

CWE-79

Affected Products

Product	Versions
Fireware OSWatchGuard	12.0 to before 12.11.3Affected
Fireware OSWatchGuard	12.0 to before 12.5.13Affected

References

https://psirt.watchguard.com/CVE-2025-6947vendor-advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00012vendor-advisory

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