SourceCodester Online Student File Management System SQL Injection Vulnerability in remove_file.php

A SQL injection vulnerability has been identified in SourceCodester Online Student File Management System version 1.0. The issue resides in the remove_file.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, enabling attackers to manipulate database queries. This could result in unauthorized data access, data leakage, data modification or deletion, and potentially gaining control over the application or underlying system.

Reproduction

The vulnerability can be reproduced by sending a POST request to the remove_file.php file with a crafted 'id' parameter that includes malicious SQL code. This can be done using tools like sqlmap, which automates the process of finding and exploiting SQL injection vulnerabilities.

Remediation

To address this vulnerability, it is recommended to use prepared statements and parameter binding to prevent SQL injection. Additionally, input validation and filtering should be implemented to ensure user input conforms to expected formats. Minimizing database user permissions and conducting regular security audits are also advisable.