Vulnerabilidad · Publicado 12/09/2026
The Events Calendar plugin para WordPress es vulnerable a Ejecución Remota de Código (RCE) en todas las versiones hasta 6.17.3. La vulnerabilidad existe en la función parse_array() debido a validación insuficiente del mapa 'classes' del widget, permitiendo que payloads de arrays simples eluda el control is_safe_widget_instance() y alcance el punto de invocación de funciones. Afecta directamente a sitios WordPress en México y LATAM que utilizan este plugin popular para gestión de eventos.
The The Events Calendar plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 6.17.3 via the parse_array function. This is due to insufficient validation of the widget 'classes' map, allowing a plain-array payload to bypass the is_safe_widget_instance() object check and reach the callable-invocation sink in Element_Classes::parse_array(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires that the targeted site has comments enabled on tribe_events posts and that at least one comment containing a crafted wp:legacy-widget block has been submitted, as the attack chain is triggered when do_blocks() processes the single-event HTML including the comment area.
Score: 9.8/10 — Severidad: CRITICAL — Estado NIST: Received
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-94
Publicado en NIST NVD.