Stored Cross-site Scripting Vulnerability in WatchGuard Fireware OS
CVE-2025-13937

4.8MEDIUM

Key Information:

Vendor

Watchguard

Status
Fireware Os
Vendor
CVE Published:
4 December 2025

What is CVE-2025-13937?

A vulnerability exists in WatchGuard Fireware OS due to improper neutralization of input during web page generation, allowing for stored Cross-site Scripting (XSS) attacks. This security flaw can enable attackers to inject malicious scripts that are executed in the context of users accessing affected systems. The versions impacted include Fireware OS 12.4, 12.5 (up to and including 12.5.13), 12.11.4, and 2025.1 (up to and including 2025.1.2). Organizations using these versions are advised to apply security patches promptly to mitigate risks associated with this vulnerability.

Affected Version(s)

Fireware OS 12.4 <= 12.11.4

Fireware OS 12.5 <= 12.5.13

Fireware OS 2025.1 <= 2025.1.2

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-...

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-13937 : Stored Cross-site Scripting Vulnerability in WatchGuard Fireware OS