Vulnerabilidad · Publicado 25/09/2026
El plugin Themify Builder para WordPress (versiones hasta 7.8.1) es vulnerable a inyección de scripts almacenados (Stored XSS) a través del parámetro 'css[fonts]' sin validación adecuada. Atacantes no autenticados pueden inyectar código malicioso que se ejecuta cuando usuarios acceden a páginas comprometidas, comprometiendo datos de administradores y visitantes en sitios empresariales de México y LATAM que usen este plugin.
The Themify Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'css[fonts]' Parameter in all versions up to, and including, 7.8.1 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 nonce required to reach the vulnerable endpoint is embedded in plain sight within the front-end page markup for all visitors, reducing the access control to a CSRF token rather than an authentication barrier and making the endpoint fully exploitable by unauthenticated attackers.
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.