CVE-2026-78047 Dimension Stored XSS in Scheduled Report Task
A low-privileged admin can inject scripts into scheduled reports, executing them in other users' browsers to potentially hijack sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-78047?
CVE-2026-78047 is a medium-severity cross-site scripting vulnerability in WatchGuard Dimension, published on 27 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A stored cross-site scripting (XSS) vulnerability in WatchGuard Dimension's task scheduling feature allows a low-privileged authenticated administrator to inject arbitrary HTML/JavaScript into these fields, which then executes in the browser session of any other user.
Weakness: CWE-79
Which versions are affected by CVE-2026-78047?
How do I fix CVE-2026-78047?
No fix has been published for CVE-2026-78047 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-78047 being exploited?
There is no known exploitation of CVE-2026-78047 in the wild and no public exploit code.
Sources
Also known as CVE-2026-78195, GHSA-6hfv-jqr3-fvp9.