Vulnerabilidad · Publicado 19/08/2026
El plugin WP Statistics para WordPress contiene una vulnerabilidad de Cross-Site Scripting (XSS) almacenado en el parámetro 'utm_campaign' que permite a atacantes no autenticados inyectar scripts maliciosos. La falla afecta todas las versiones hasta 14.16.8 y se ejecuta cuando visitantes acceden a páginas comprometidas, poniendo en riesgo datos de usuarios y credenciales en sitios empresariales, de comercio electrónico y portales informativos comunes en LATAM.
The WP Statistics – Simple, privacy-friendly Google Analytics alternative plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'utm_campaign' parameter in all versions up to, and including, 14.16.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload can be planted without authentication via the public /wp-statistics/v2/hit REST endpoint, because the required signature is exposed on the public homepage and a base64-encoded page_uri POST parameter overrides the previously sanitized REQUEST_URI, allowing the malicious utm_campaign value to bypass sanitization and be stored in the database.
Score: 7.2/10 — Severidad: HIGH — Estado NIST: Received
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE-79
Publicado en NIST NVD.