CVE-2026-22707
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-434
Subida sin restricciones de ficheros de tipos peligrosos
Fecha de publicación:
14/05/2026
Última modificación:
16/05/2026
Descripción
*** Pendiente de traducción *** Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions (`plugin.upload.security.allowedTypes` and `deniedTypes`). The same restrictions were correctly enforced on the Admin Panel upload path. The upload plugin's `enforceUploadSecurity` security check was invoked in the admin upload controller but was missing from the Content API controller. The Content API handlers `uploadFiles` and `replaceFile` (and the `upload` wrapper that dispatches to them) called the underlying upload service directly, bypassing both the magic-byte MIME detection and the configured allow/deny lists. An authenticated user with the Content API upload permission could therefore upload file types the administrator had explicitly disallowed, including HTML and SVG content. In deployments serving uploaded files from the same origin as the admin panel (default), an attacker could upload an HTML or SVG file that, when opened directly by an admin, executed JavaScript in the admin origin, enabling admin-session hijack and authenticated administrative actions against the admin API. The patch in version 5.33.3 introduces a shared `prepareUploadRequest` helper that wraps `enforceUploadSecurity` and is called from both the Content API and admin upload controllers, ensuring identical security policy enforcement on every upload entry point.
Impacto
Puntuación base 4.0
5.30
Gravedad 4.0
MEDIA
Puntuación base 3.x
5.40
Gravedad 3.x
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:strapi:strapi:*:*:*:*:*:node.js:*:* | 5.33.3 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página