CVE-2026-81891

CVE-2026-81891 · elFinder: ZIP extraction bypasses uploadDeny MIME filter allowing PHP file upload (RCE)

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Prior to 2.1.70, checkExtractItems() in php/elFinderVolumeDriver.class.php calls mimetypeInternalDetect() without passing the result through mimeTypeNormalize(). Because the .phtml, .phar, .php5, and .php3 extensions are absent from mime.types, the staticMimeMap entries that map them to text/x-php are not applied, and allowPutMime() permits extraction even when uploadDeny blocks text/x-php. An attacker with ZIP upload permission can extract PHP-executable files into a web-accessible files/ directory and achieve remote code execution when the server executes those extensions. This issue is fixed in version 2.1.70.

CVSS 8.1 · Élevée · EPSS 0,9% · Correctif disponible

Publication

2026-08-31T20:33:22.283Z

Mise à jour

2026-09-01T14:58:22.211Z

Pile logicielle: php

Vérifiez votre serveur →