A SQL Injection vulnerability exists in Sourcecodester Online Event Booking and Reservation System in PHP in event-management/views. An attacker can leverage this vulnerability in order to manipulate the sql query performed. As a result he can extract sensitive data from the web server and in some cases he can use this vulnerability in order to get a remote code execution on the remote web server.
https://www.sourcecodester.com/php/14241/online-event-booking-and-reservation-system-phpmysql.html
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42667