Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/nexter-extension/trunk/include/class-
- https://plugins.trac.wordpress.org/browser/nexter-extension/trunk/include/class-
- https://plugins.trac.wordpress.org/changeset?old=3402155&old_path=nexter-extensi
- https://www.wordfence.com/threat-intel/vulnerabilities/id/809cd97c-22ea-49e7-be4
FAQ
What is CVE-2025-13731?
CVE-2025-13731 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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...
How severe is CVE-2025-13731?
CVE-2025-13731 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-13731?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.