CVE-2025-13939
WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Gateway Wireless Controller
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Gateway Wireless Controller module) allows Stored XSS.This issue affects Fireware OS 11.7.2 up to and including 11.12.4+541730, 12.0 up to and including 12.11.4, 12.5 up to and including 12.5.13, and 2025.1 up to and including 2025.1.2.
INFO
Published Date :
Dec. 4, 2025, 10:15 p.m.
Last Modified :
Dec. 4, 2025, 10:15 p.m.
Remotely Exploit :
Yes !
Source :
5d1c2695-1a31-4499-88ae-e847036fd7e3
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | ||||
| CVSS 4.0 | MEDIUM | 5d1c2695-1a31-4499-88ae-e847036fd7e3 |
Solution
- Apply the latest WatchGuard Fireware OS update.
- Ensure all affected modules are updated.
- Validate the fix in the Gateway Wireless Controller.
- Monitor for future security advisories.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-13939.
| URL | Resource |
|---|---|
| https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00024 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-13939 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-13939
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-13939 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-13939 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 5d1c2695-1a31-4499-88ae-e847036fd7e3
Dec. 04, 2025
Action Type Old Value New Value Added Description Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Gateway Wireless Controller module) allows Stored XSS.This issue affects Fireware OS 11.7.2 up to and including 11.12.4+541730, 12.0 up to and including 12.11.4, 12.5 up to and including 12.5.13, and 2025.1 up to and including 2025.1.2. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-79 Added Reference https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00024