Firebox and Fireware OS
CVE-2026-78616: Dimension Stored XSS via Trusted CA Certificate Configuration
A Stored Cross-Site Scripting (XSS) vulnerability in WatchGuard Dimension's Trusted CA certificate configuration allows an authenticated administrator to execute arbitrary JavaScript in another authenticated administrator's web browser by saving a carefully crafted certificate.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Dimension 2.0 | 2.3.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A Stored Cross-Site Scripting (XSS) vulnerability in WatchGuard Dimension's Trusted CA certificate configuration allows an authenticated administrator to execute arbitrary JavaScript in another authenticated administrator's web browser by saving a carefully crafted certificate.
Exploitation
WatchGuard is not aware of any exploitation of this vulnerability in the wild.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.