Vulnerabilities and security researches fornexter-extension nexter-extension

Apr 15, 2026

CVE, Research URL: CVE-2026-0726
Home page URL: Security reports for Nexter Extension
Application: Nexter Extension
Date: Jan 20, 2026
Research Description: The Nexter Extension – Site Enhancements Toolkit plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.4.6 via deserialization of untrusted input in the 'nxt_unserialize_replace' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Affected versions: max 4.4.7.
Status: vulnerable

Dec 10, 2025

CVE, Research URL: CVE-2025-13731
Home page URL: Security reports for Nexter Extension
Application: Nexter Extension
Date: Dec 02, 2025
Research 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.
Affected versions: max 4.4.2.
Status: vulnerable

Jun 06, 2024

CVE, Research URL: CVE-2023-45750
Home page URL: Security reports for Nexter Extension
Application: Nexter Extension
Date: Oct 25, 2023
Research Description: Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in POSIMYTH Nexter Extension plugin <= 2.0.3 versions.
Affected versions: max 2.0.4.
Status: vulnerable

CVE, Research URL: CVE-2023-45751
Home page URL: Security reports for Nexter Extension
Application: Nexter Extension
Date: Dec 29, 2023
Research Description: Improper Control of Generation of Code ('Code Injection') vulnerability in POSIMYTH Nexter Extension.This issue affects Nexter Extension: from n/a through 2.0.3.
Affected versions: max 2.0.4.
Status: vulnerable