XSS in Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor
CVE-2026-3001
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.002
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-3001?
- CVE-2026-3001 is a medium-severity vulnerability in Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-27.
- How severe is CVE-2026-3001?
- Medium severity. CVSS v3 base score is 6.1 out of 10.