SourceCodester Online Exam Form Submission SQL Injection Vulnerability in delete_user.php

A SQL injection vulnerability has been identified in SourceCodester Online Exam Form Submission version 1.0. The issue resides in the admin/delete_user.php file, where the 'id' parameter is manipulated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, leading to unauthorized database access, data modification or deletion, and exposure of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, which could lead to unauthorized database access, manipulation or deletion of data, and exposure of sensitive information.

Reproduction

The vulnerability can be reproduced by sending a crafted HTTP request to the admin/delete_user.php file with a manipulated 'id' parameter. This can be done using tools like sqlmap, which can automate the exploitation of SQL injection vulnerabilities.

Remediation

It is recommended to use prepared statements and parameter binding to prevent SQL injection, validate and filter user input, minimize database user permissions, and conduct regular security audits.