CVE-2026-13373: WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Tigerpaw Technology Integration Configuration
Published Jul 2, 2026
·Updated
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Tigerpaw Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13936.
Affected Software
42 affected components
WatchGuard Fireware OS>=12.4<=12.12, >=12.5<=12.5.18, >=2025.1<=2026.2
All of the following
WatchGuard Fireware>=12.4<12.12.1
Any of the following
WatchGuard Firebox M270
WatchGuard Firebox M290
WatchGuard Firebox M370
WatchGuard Firebox M390
WatchGuard Firebox M440
WatchGuard Firebox M4600
WatchGuard Firebox M470
WatchGuard Firebox M4800
WatchGuard Firebox M5600
WatchGuard Firebox M570
WatchGuard Firebox M5800
WatchGuard Firebox M590
WatchGuard Firebox M670
WatchGuard Firebox M690
WatchGuard Firebox Nv5
WatchGuard Firebox T20
WatchGuard Firebox T25
WatchGuard Firebox T40
WatchGuard Firebox T45
WatchGuard Firebox T55
WatchGuard Firebox T70
WatchGuard Firebox T80
WatchGuard Firebox T85
WatchGuard Fireboxcloud
WatchGuard Fireboxv
All of the following
WatchGuard Fireware>=2025.1<2026.2.1
Any of the following
WatchGuard Firebox M295
WatchGuard Firebox M395
WatchGuard Firebox M495
WatchGuard Firebox M595
WatchGuard Firebox M695
WatchGuard Firebox T115-w
WatchGuard Firebox T125
WatchGuard Firebox T125-w
WatchGuard Firebox T145
WatchGuard Firebox T145-w
WatchGuard Firebox T185
All of the following
WatchGuard Fireware>=12.5<=12.5.18
Any of the following
WatchGuard Firebox T15
WatchGuard Firebox T35
Event History
Jul 2, 2026
CVE Published
via MITRE·11:05 PM
Data Sourced
via MITRE·11:05 PM
RemedyDescriptionWeakness
Jul 3, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-13373?
CVE-2026-13373 has a medium severity rating of 4.8 according to the CVSS.
2
How do I fix CVE-2026-13373?
To remediate CVE-2026-13373, apply the latest patches provided by WatchGuard for the Fireware OS.
3
What kind of vulnerability is CVE-2026-13373?
CVE-2026-13373 is a stored cross-site scripting (XSS) vulnerability affecting the Tigerpaw Technology Integration configuration in WatchGuard Fireware OS.
4
What systems are affected by CVE-2026-13373?
CVE-2026-13373 affects the WatchGuard Fireware OS when using the Tigerpaw Technology Integration module.
5
When was CVE-2026-13373 published?
CVE-2026-13373 was published on July 2, 2026.