CVE-2026-83526
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-434
Subida sin restricciones de ficheros de tipos peligrosos
Fecha de publicación:
10/10/2026
Última modificación:
10/10/2026
Descripción
*** Pendiente de traducción *** The FV Player 8 plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 8.1.7 via the check_mimetype function. This is due to insufficient file type validation in check_mimetype(), which writes attacker-supplied remote file content to the public uploads directory before any MIME or extension check, combined with a missing capability check on new player creation. 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. This requires successfully exploiting a race condition.
Impacto
Puntuación base 3.x
8.80
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://github.com/foliovision/fv-wordpress-flowplayer/releases/tag/8.1.8
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/controller/editor.php#L36
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/controller/frontend.php#L1211
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L105
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L148
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L181
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db-video.php#L855
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L1102
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L1173
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L46
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5c75cb7b-1ebe-411c-8664-848d741e40d4?source=cve