Vulnerabilidad · Publicado 30/09/2026
El plugin Post Views Stats Counter de WordPress es vulnerable a inyección de scripts almacenados (Stored XSS) a través del encabezado User-Agent en versiones hasta la 1.1.7, permitiendo a atacantes no autenticados ejecutar código malicioso en páginas que afecta a todos los visitantes. Esta vulnerabilidad representa alto riesgo para sitios web de empresas, organismos públicos y plataformas de comercio electrónico en LATAM que utilicen este plugin sin actualizar.
The Post Views Stats Counter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via User-Agent Header in all versions up to, and including, 1.1.7 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 plugin's only input filter is a substring blacklist for known bot signatures (e.g. 'bot', 'spider', 'crawler'), which can be trivially bypassed by crafting a User-Agent payload that omits those strings.
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.