# Exploit Title: Redaxo CMS Mediapool Addon < 5.5.1 - Arbitrary File Upload # Date: 2018-06-13 # Exploit Author: mn@HackerWerkstatt # Vendor Homepage: https://redaxo.org # Software Link: https://redaxo.org/download/redaxo/5.5.1.zip # Version: 5.5.1 and older # Tested on: LinuxMint # More: Login required ### PoC ### In the REDAXO CMS under version 5.6.0 the mediapool addon is vuln. Users who have an user-account, like editor, can use the mediapool to upload files. The mediapool addon under version 2.4.0 uses a blacklist for fileupload. For users it isn't possible upload files named: php, php4, php5, php6 or php7. But, if you name the files like php71 or php53 the blacklist-function ignore this and upload of shellcode-file is possible. https://example.com/redaxo/index.php?page=mediapool/media ### Fixed in mediapool 2.4.0 and Redaxo CMS 5.6.0 ### reported: 08.03.2018 ### fixed: 08.06.2018