TI-2025-06317 Aliases CVE-2025-6947 GHSA-gwm6-fv92-g69q

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

LOW 23CWE-79Published 2025-09-15 · Updated 2026-08-07

Key facts

Attack vector: Network
Privileges required: High
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00476 41st percentileScored 2026-11-07

Fix Fixed Fireware OS (WatchGuard): 12.11.3, 12.5.13

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
WatchGuard	Fireware OS	12.0 to before 12.11.3	12.11.3	Patch available	CNA
WatchGuard	Fireware OS	12.0 to before 12.5.13	12.5.13	Patch available	CNA

Fireware OS VendorWatchGuard Affected 12.0 to before 12.11.3 Fixed in 12.11.3 Patch available CNA
Fireware OS VendorWatchGuard Affected 12.0 to before 12.5.13 Fixed in 12.5.13 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:o:watchguard:fireware::::::::	—	—	WatchGuard

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* Versions — — ·WatchGuard

Remediation

Fix · CNA Fireware OS (WatchGuard) Fixed in 12.11.3
Fix · CNA Fireware OS (WatchGuard) Fixed in 12.5.13

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-09-15
WatchGuard Fireware OS 12.11.3
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-06366 WatchGuard Firebox Authentication Portal Request Smuggling VulnerabilityPriority LOW 31
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-6947
2026-10-03 Alias added: GHSA-gwm6-fv92-g69q

References

Advisory 2

TI-2022-09698 On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary… KEVCVSS 3.1CRITICAL 9.8
TI-2025-13451 WatchGuard Firebox iked Out of Bounds Write Vulnerability KEVCVSS 4.0CRITICAL 9.3
TI-2025-08474 WatchGuard Firebox iked Out of Bounds Write Vulnerability KEVCVSS 4.0CRITICAL 9.3
TI-2022-07330 WatchGuard Firebox and XTM appliances allow a remote attacker with unprivileged… KEVCVSS 3.1HIGH 8.8
TI-2023-19293 A DLL hijacking vulnerability in Panda Security VPN for Windows prior to version v15.14.8… CVSS 3.1MEDIUM 6.5
TI-2015-04587 Watchguard XCS 9.2 and 10.0 before build 150522 allow remote authenticated users to… CVSS 2.0MEDIUM 6.5

See all 203 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences