SourceCodester Online Student File Management System SQL Injection Vulnerability in User Deletion Endpoint

A SQL injection vulnerability has been identified in SourceCodester Online Student File Management System version 1.0. The issue resides in the admin/delete_user.php file, where the user_id parameter is manipulated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, potentially 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 be used to access, modify, or delete database information. Additionally, it could lead to unauthorized access to sensitive data or disruption of service.

Reproduction

The vulnerability can be reproduced by sending a POST request to the /admin/delete_user.php endpoint with a crafted user_id parameter that includes SQL injection payloads. This can be done using tools like sqlmap, which automates the process of finding and exploiting 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.