4.4
Medium
CVE-2026-12399 The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site…
Description
The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Gutenverse – WordPress Blocks, Page Builder & Site Editor 3.8 | earliest → 3.8.0 | No fix stated |
Other CVEs of Gutenverse – WordPress Blocks, Page Builder & Site Editor
The 5 CVEs of Gutenverse – WordPress Blocks, Page Builder & Site Editor →
CVE-2026-92746
The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site…
6.4
Medium
CVE-2026-3002
The Gutenverse – Ultimate WordPress FSE Blocks Addons & Ecosystem plugin for WordPress is vulnerable to Stored…
6.4
Medium
CVE-2026-19943
The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site…
6.4
Medium
CVE-2026-3001
The Gutenverse plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 's' parameter in all…
6.1
Medium