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Description

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.

PUBLISHED Reserved 2026-02-23 | Published 2026-05-27 | Updated 2026-05-27 | Assigner Wordfence




MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Timeline

2026-02-23:Vendor Notified
2026-05-26:Disclosed

Credits

Osvaldo Noe Gonzalez Del Rio finder

References

www.wordfence.com/...-7b76-4edb-9a35-b6f623ed50a7?source=cve

plugins.trac.wordpress.org/.../class-search-result-title.php

plugins.trac.wordpress.org/changeset/3468383/

cve.org (CVE-2026-3001)

nvd.nist.gov (CVE-2026-3001)

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