CVE-2026-3001CWE-79

Gutenverse <= 3.4.6 - Reflected Cross-Site Scripting via 's' Parameter

Medium · published May 27, 2026

CVSS v3.1
6.1
EPSS
1%
Percentile
50.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00643 · 50.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-27T07:45Z
EPSS history
Timeline
  • 27 MAY 07:45Z
    Gutenverse <= 3.4.6 - Reflected Cross-Site Scripting via 's' Parameter
    cvelistv5