PT-2025-49163 · Watchguard · Watchguard Fireware+1

Simone Paganessi · Published 2025-12-04 · Updated 2025-12-10 · CVE-2025-13939

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.7.2 through 11.12.4+541730 WatchGuard Fireware OS versions 12.0 through 12.11.4 WatchGuard Fireware OS versions 12.5 through 12.5.13 WatchGuard Fireware OS versions 2025.1 through 2025.1.2

Description A flaw exists in the Gateway Wireless Controller module of WatchGuard Fireware OS that allows for Stored Cross-site Scripting (XSS). This issue is due to improper neutralization of input during web page generation. Successful exploitation could allow an attacker to inject malicious scripts into web pages viewed by other users.

Recommendations Update WatchGuard Fireware OS to a version later than 11.12.4+541730. Update WatchGuard Fireware OS to a version later than 12.11.4. Update WatchGuard Fireware OS to a version later than 12.5.13. Update WatchGuard Fireware OS to a version later than 2025.1.2.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-13939

Affected Products

Gateway Wireless Controller

Watchguard Fireware

References · 7

• https://osv.dev/vulnerability/CVE-2025-13939 · Vendor Advisory
• https://watchguard.com/wgrd-psirt/advisory/wgsa-2025-00024 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-13939 · Security Note
• https://t.me/CVEtracker/38866 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1996792426686456149 · Twitter Post
• https://twitter.com/CVEnew/status/1996704781193150846 · Twitter Post
• https://t.me/cveNotify/145343 · Telegram Post