CVE-2026-13374: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in WatchGuard Fireware OS
CVE-2026-13374 is a medium-severity Stored Cross-site Scripting (XSS) vulnerability in WatchGuard Fireware OS affecting the ConnectWise Technology Integration module. It involves improper neutralization of input during web page generation, allowing an attacker to inject malicious scripts. This vulnerability affects specific versions of Fireware OS and represents an additional attack path related to CVE-2025-13937. No official patch or remediation level has been confirmed yet.
AI Analysis
Technical Summary
This vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored Cross-site Scripting (CWE-79) due to improper input neutralization during web page generation. It affects Fireware OS versions 12.4, 12.5, and 2025.1 as explicitly stated, and is an additional unmitigated attack vector related to CVE-2025-13937. The CVSS 4.8 score indicates medium severity with network attack vector, low complexity, and requires high privileges and partial user interaction. No official fix or patch has been published as of the data provided.
Potential Impact
Successful exploitation could allow an attacker with high privileges to inject malicious scripts that execute in the context of the affected web interface, potentially leading to unauthorized actions or information disclosure within the Fireware OS management environment. However, the vulnerability requires high privileges and some user interaction, limiting its ease of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No vendor-provided mitigation or workaround information is available at this time.
CVE-2026-13374: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in WatchGuard Fireware OS
Description
CVE-2026-13374 is a medium-severity Stored Cross-site Scripting (XSS) vulnerability in WatchGuard Fireware OS affecting the ConnectWise Technology Integration module. It involves improper neutralization of input during web page generation, allowing an attacker to inject malicious scripts. This vulnerability affects specific versions of Fireware OS and represents an additional attack path related to CVE-2025-13937. No official patch or remediation level has been confirmed yet.
CVSS v4.0
Score 4.8medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored Cross-site Scripting (CWE-79) due to improper input neutralization during web page generation. It affects Fireware OS versions 12.4, 12.5, and 2025.1 as explicitly stated, and is an additional unmitigated attack vector related to CVE-2025-13937. The CVSS 4.8 score indicates medium severity with network attack vector, low complexity, and requires high privileges and partial user interaction. No official fix or patch has been published as of the data provided.
Potential Impact
Successful exploitation could allow an attacker with high privileges to inject malicious scripts that execute in the context of the affected web interface, potentially leading to unauthorized actions or information disclosure within the Fireware OS management environment. However, the vulnerability requires high privileges and some user interaction, limiting its ease of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No vendor-provided mitigation or workaround information is available at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WatchGuard
- Date Reserved
- 2026-06-25T20:31:06.991Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a46f27f27e9c797194fff9d
Added to database: 07/02/2026, 23:21:35 UTC
Last enriched: 07/02/2026, 23:37:39 UTC
Last updated: 07/03/2026, 03:23:53 UTC
Views: 8
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