CVE-2026-3002 Gutenverse <= 4.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Blocks
Authenticated attackers with Contributor access can inject arbitrary scripts into pages via multiple blocks, executing them for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3002?
CVE-2026-3002 is a medium-severity cross-site scripting vulnerability in jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Gutenverse – Ultimate WordPress FSE Blocks Addons & Ecosystem plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the multiple blocks in all versions up to, and including, 4.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2026-3002?
How do I fix CVE-2026-3002?
No fix has been published for CVE-2026-3002 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-2026-3002 being exploited?
There is no known exploitation of CVE-2026-3002 in the wild and no public exploit code.
Sources
Also known as GHSA-c7h6-xfw7-v3wq.