Rapid7 Vulnerability & Exploit Database

Joomla!: [20161202] - Core - Shell Upload (CVE-2016-9836)

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Joomla!: [20161202] - Core - Shell Upload (CVE-2016-9836)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
12/05/2016
Created
07/25/2018
Added
12/14/2016
Modified
10/30/2017

Description

The file scanning mechanism of JFilterInput::isFileSafe() in Joomla! CMS before 3.6.5 does not consider alternative PHP file extensions when checking uploaded files for PHP content, which enables a user to upload and execute files with the `.php6`, `.php7`, `.phtml`, and `.phpt` extensions. Additionally, JHelperMedia::canUpload() did not blacklist these file extensions as uploadable file types.

Solution(s)

  • joomla-upgrade-3_6_5

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