CVE-2025-6947

Improper Neutralization of Input During Web Page Generation (XSS or ‘Cross-site Scripting’) vulnerability in WatchGuard Fireware OS allows Stored XSS via the SIP Proxy module. This vulnerability requires an authenticated administrator session to a locally managed Firebox.

This issue affects Firebox: from 12.0 through 12.11.2.

More information : https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00012