CVE-2026-13375
Medium
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.
SeverityMedium
CVSS4.8
Exploit probability—
ProductWatchguard Fireware
PublishedJul 3, 2026
First seenJul 3, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- watchguard fireware12.12.1, 2026.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| watchguard fireware | 12.4 ≤ v < 12.12.1, 2025.1 ≤ v < 2026.2.1, 12.5 ≤ v ≤ 12.5.18 | 12.12.1, 2026.2.1 |
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