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.
Problem types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Product status
* (semver)
Timeline
| 2025-11-26: | Vendor Notified |
| 2025-12-01: | Disclosed |
Credits
Muhammad Yudha - DJ
References
www.wordfence.com/...-22ea-49e7-be46-688fefe50236?source=cve
plugins.trac.wordpress.org/...lude/class-nexter-load-ext.php
plugins.trac.wordpress.org/...lude/class-nexter-load-ext.php
plugins.trac.wordpress.org/...de%2Fclass-nexter-load-ext.php