CVE-2026-13374

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13937.

Score

CVSS 4.0 4.8 Medium

Status

Modified - 5d1c2695-1a31-4499-88ae-e847036fd7e3

Published

2026-07-02

Last modified

2026-10-25

Weaknesses

CWE-79

Affected products

• Fireware (Watchguard)
• Fireware Os (Watchguard)

References

• https://psirt.watchguard.com/CVE-2026-13374
• https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00016