CVE-2026-3001: Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

The Gutenverse plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 's' parameter in all versions up to, and including, 3.4.6 due to insufficient input sanitization and output escaping. Specifically, the `render_content()` method in `class-search-result-title.php` outputs the value of `get_query_var('s')` directly into the page HTML without applying `esc_html()` or any other escaping function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages via a crafted URL that execute if a user clicks the link, provided the `gutenverse/search-result-title` block is present on the site's search results template.

Affected products

• Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor: up to and including 3.4.6

Published 2026-05-27. Last modified 2026-06-17.