Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS allows Stored XSS via the SIP Proxy module. This vulnerability requires an authenticated administrator session to a locally managed Firebox.

This issue affects Firebox: from 12.0 through 12.11.2.
Published: 2025-09-15
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-29269 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS allows Stored XSS via the SIP Proxy module. This vulnerability requires an authenticated administrator session to a locally managed Firebox. This issue affects Firebox: from 12.0 through 12.11.2.
History

Wed, 17 Sep 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Watchguard
Watchguard firebox
Watchguard fireware
Vendors & Products Watchguard
Watchguard firebox
Watchguard fireware

Tue, 16 Sep 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 15 Sep 2025 21:30:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS allows Stored XSS via the SIP Proxy module. This vulnerability requires an authenticated administrator session to a locally managed Firebox. This issue affects Firebox: from 12.0 through 12.11.2.
Title WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in SIP Proxy Configuration
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 4.8, 'vector': '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'}


Subscriptions

Watchguard Firebox Fireware
cve-icon MITRE

Status: PUBLISHED

Assigner: WatchGuard

Published:

Updated: 2025-09-16T13:50:53.924Z

Reserved: 2025-07-01T02:34:13.150Z

Link: CVE-2025-6947

cve-icon Vulnrichment

Updated: 2025-09-16T13:50:48.271Z

cve-icon NVD

Status : Deferred

Published: 2025-09-15T22:15:34.600

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-6947

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-09-17T10:52:25Z

Weaknesses