Singleleg MLM Software 1.0 SQL Injection

`# Exploit Title: Singleleg MLM Software 1.0 - 'msg_id' SQL Injection  
# Dork: N/A  
# Date: 2018-10-01  
# Exploit Author: Ihsan Sencan  
# Vendor Homepage: http://mlmsoftwarez.in/  
# Software Link: http://mlmdemo.biz/singleleg/root.html  
# Software Link: http://mlmdemo.biz/autopool/root.html  
# Software Link: http://mlmdemo.biz/gift/root.html  
# Software Link: http://mlmdemo.biz/investment/root.html  
# Software Link: http://mlmdemo.biz/bidding/root.html  
# Software Link: http://mlmdemo.biz/adclicking/root.html  
# Software Link: http://mlmdemo.biz/repurchase/root.html  
# Software Link: http://mlmdemo.biz/moneyorderplan/root.html  
# Software Link: http://mlmdemo.biz/level/root.html  
# Version: 1.0  
# Category: Webapps  
# Tested on: WiN7_x64/KaLiLinuX_x64  
# Affected Products: Singleleg MLM Software 1.0, Autopool MLM Software 1.0, Gift MLM Software 1.0  
# Investmen MLM Software 1.0, Bidding MLM Software 1.0, ADD Clicking MLM Software 1.0  
# Repurchase MLM Software 1.0, Moneyorder MLM Software 1.0, Level MLM Software 1.0  
# CVE: N/A  
  
# POC:   
# http://localhost/[PATH]/member/readmsg.php?msg_id=[SQL]  
  
`