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CVE-2026-13375: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in WatchGuard Fireware OS

0
Medium
VulnerabilityCVE-2026-13375cvecve-2026-13375cwe-79
Published: 07/02/2026 (07/02/2026, 23:05:20 UTC)
Source: CVE Database V5
Vendor/Project: WatchGuard
Product: Fireware OS

Description

CVE-2026-13375 is a stored Cross-site Scripting (XSS) vulnerability in WatchGuard Fireware OS affecting the Autotask Technology Integration module. It allows improper neutralization of input during web page generation, enabling an additional attack path related to CVE-2025-13938. The vulnerability affects specific versions of Fireware OS including 12.4, 12.5, and 2025.1. The CVSS 4.8 score indicates a medium severity level.

CVSS v4.0

Score 4.8medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
Passive
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
Low
Subsq. Integrity
Low
Subsq. Availability
None
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

Affected software

Affected versions
=12.4=12.5=2025.1

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/02/2026, 23:37:33 UTC

Technical Analysis

This vulnerability in WatchGuard Fireware OS arises from improper input neutralization during web page generation, leading to stored XSS in the Autotask Technology Integration module. It provides an additional unmitigated attack vector related to a previously identified issue (CVE-2025-13938). The affected versions explicitly include 12.4, 12.5, and 2025.1. No official remediation or patch is currently documented, and no known exploits are reported in the wild.

Potential Impact

Successful exploitation could allow an attacker with high privileges and user interaction to execute stored cross-site scripting attacks, potentially leading to script execution in the context of the affected application. However, the vulnerability requires user interaction and high privileges, limiting the impact scope. There is no indication of confidentiality, integrity, or availability impact beyond the XSS vector.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is documented at this time. Users should monitor WatchGuard advisories for updates and apply any future patches promptly. Given the requirement for high privileges and user interaction, limiting access to the affected modules and following best practices for user privilege management may reduce risk.

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Technical Details

Data Version
5.2
Assigner Short Name
WatchGuard
Date Reserved
2026-06-25T20:31:08.245Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a46f27f27e9c797194fffa0

Added to database: 07/02/2026, 23:21:35 UTC

Last enriched: 07/02/2026, 23:37:33 UTC

Last updated: 07/03/2026, 02:56:28 UTC

Views: 7

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