CVE-2019-18652: WatchGuard XMT515 Firmware

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

A DOM based XSS vulnerability has been identified on the WatchGuard XMT515 through 12.1.3, allowing a remote attacker to execute JavaScript in the victim's browser by tricking the victim into clicking on a crafted link. The payload was tested in Microsoft Internet Explorer 11.418.18362.0 and Microsoft Edge 44.18362.387.0 (Microsoft EdgeHTML 18.18362).

Affected products

• WatchGuard XMT515 Firmware: up to and including 12.3

Published 2020-01-07. Last modified 2026-06-17.