For CVE-2020-25889:
# Exploit Title: online bus booking system project using PHP MySQL - SQL Injection
# Exploit Author: Krishna Yadav
# Vendor Homepage: https://www.sourcecodester.com
# Software Link: https://www.sourcecodester.com/php/14438/online-bus-booking-system-project-using-phpmysql.html
# Version: 1.0
# Tested on Windows 10/Kali Linux

SQL Injection:
SQL Injection (SQLi) is a type of injection attack that makes it possible
to execute malicious SQL statements. These statements control a database
server behind a web application. Attackers can use SQL Injection
vulnerabilities to bypass application security measures. They can go around
authentication and authorization of a web page or web application and
retrieve the content of the entire SQL database. They can also use SQL
Injection to add, modify, and delete records in the database.

Attack Vector:
online-bus-booking-system-project-using-PHP-MySQL version 1.0 has SQL
injection at the login page. By placing SQL injection payload on the login
page attacker can bypass the authentication and can gain the admin
privilege.

Vulnerable Parameter: Login Page