Security Advisory

CVE-2026-12399

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-27 06:50:59

Last updated 2026-06-29 12:23:58

Assigner Wordfence

CVSS score 4.4

State PUBLISHED

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.

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