Vulnerabilidad · Publicado 15/08/2026
El plugin 'Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms' para WordPress (versiones hasta 5.1) contiene una vulnerabilidad de Cross-Site Scripting (XSS) almacenado en el parámetro 'action' por falta de sanitización. Atacantes no autenticados pueden inyectar scripts maliciosos que se ejecutan cuando usuarios acceden a páginas con formularios afectados. Este riesgo impacta directamente sitios web de empresas, tiendas en línea y portales institucionales en LATAM que usan este plugin.
The Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'action' parameter in all versions up to, and including, 5.1 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 stored payload is written by any unauthenticated admin-ajax.php request whose action value matches an entry in the plugin's explicit-actions list, which is auto-populated for common form builders at activation and requires no authentication gate to reach the save path.
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.