CVE-2026-78616

Medium

Description

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.

SeverityMedium

CVSS4.8

Exploit probability—

ProductDimension

PublishedAug 28, 2026

First seenAug 28, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

WatchGuard Dimension2.3.1 or later

Vendor advisories

psirt.watchguard.com/CVE-2026-78616

Affected products

Product	Affected versions	Fixed in
WatchGuard Dimension	2.0 ≤ v < 2.3.1	2.3.1

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