A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click o…

Medium CVSS 6.1

CVECVE-2026-3343

First seen2026-08-10 21:15 UTC

Disclosed2026-03-03 14:15 UTC

Last updated2026-08-10 21:15 UTC

Channel statusauto

Summary

A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link.

In-depth triage

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

Sources

NVD DATABASE

Original Links

https://psirt.watchguard.com/CVE-2026-3343
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00004 Vendor Advisory

Timeline

2026-08-10 nvd_ingest NVD