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Rapid7

module

October CMS Upload Protection Bypass Code Execution

Disclosed
Apr 25, 2017

Description

This module exploits an Authenticated user with permission to upload and manage media contents can
upload various files on the server. Application prevents the user from
uploading PHP code by checking the file extension. It uses black-list based
approach, as seen in octobercms/vendor/october/rain/src/Filesystem/
Definitions.php:blockedExtensions().
This module was tested on October CMS version v1.0.412 on Ubuntu.
Title
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