Vulnerabilidad · Publicado 16/10/2026
El plugin DoubleScale All-in-One CRM para WordPress (versiones hasta 1.5.1) contiene una vulnerabilidad de carga arbitraria de archivos (CVSS 8.8) en la función store_upload, explotable a través de un fallo en la validación de extensiones. Afecta principalmente a pequeñas y medianas empresas en LATAM que utilizan WordPress con funciones de CRM, marketing multicanal y helpdesk. Un atacante podría ejecutar código malicioso en el servidor comprometiendo datos de clientes y operaciones comerciales.
The DoubleScale | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.5.1 via the store_upload function. This is due to a fail-open extension allow-list in extension_is_allowed() that returns true when wp_check_filetype() yields an empty type for unrecognized extensions such as .php, combined with magic-byte-only MIME detection and no capability check beyond is_user_logged_in(). This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. Exploitation requires the Helpdesk module to be enabled, as the vulnerable REST endpoint is only registered when that module is active.
Score: 8.8/10 — Severidad: HIGH — Estado NIST: Received
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-434
Publicado en NIST NVD.