CVE-2025-13731 – Nexter Extension <= 4.4.1 – Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

CVE ID : CVE-2025-13731

Published : Dec. 2, 2025, 2:16 p.m. | 54 minutes ago

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.

Severity: 6.4 | MEDIUM

Visit the link for more details, such as CVSS details, affected products, timeline, and more…