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MEDIUM · 4.8

CVE-2026-13375

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS. This vul...

Vulnerability Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13938. This issue affects Fireware OS 12.4 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
WatchguardFireware>= 12.4, < 12.12.1
WatchguardFirebox M270-
WatchguardFirebox M290-
WatchguardFirebox M370-
WatchguardFirebox M390-
WatchguardFirebox M440-
WatchguardFirebox M4600-
WatchguardFirebox M470-
WatchguardFirebox M4800-
WatchguardFirebox M5600-
WatchguardFirebox M570-
WatchguardFirebox M5800-
WatchguardFirebox M590-
WatchguardFirebox M670-
WatchguardFirebox M690-
WatchguardFirebox Nv5-
WatchguardFirebox T20-
WatchguardFirebox T25-
WatchguardFirebox T40-
WatchguardFirebox T45-

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-13375?

CVE-2026-13375 is a vulnerability with a CVSS score of 4.8 (MEDIUM). Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS. This vul...

How severe is CVE-2026-13375?

CVE-2026-13375 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13375?

Check the references section above for vendor advisories and patch information. Affected products include: Watchguard Fireware, Watchguard Firebox M270, Watchguard Firebox M290, Watchguard Firebox M370, Watchguard Firebox M390.