6.4
/ 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Description
The Nexter Extension – Site Enhancements Toolkit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'nxt-year' shortcode in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Basic Information
ID
CVE-2025-13731
Source
Wordfence
Published
Dec 2, 2025 at 13:53
Affected Product
Vendor
posimyththemes
Product
Nexter Extension – Site Enhancements Toolkit
Version
*
Affected Versions
posimyththemes Nexter Extension – Site Enhancements Toolkit *
CWE Classification
References
- www.wordfence.com /threat-intel/vulnerabilities/id/809cd97c-22ea-49e7-be46-688fefe50236
- plugins.trac.wordpress.org /browser/nexter-extension/trunk/include/class-nexter-load-ext.php
- plugins.trac.wordpress.org /browser/nexter-extension/trunk/include/class-nexter-load-ext.php
- plugins.trac.wordpress.org /changeset