SourceCodester Online Student File Management System SQL Injection Vulnerability in Delete Student Functionality

A SQL injection vulnerability has been identified in SourceCodester Online Student File Management System version 1.0. The issue arises in the '/admin/delete_student.php' file, where the 'stud_id' parameter is not properly validated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, potentially leading to unauthorized database access, data manipulation, 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, such vulnerabilities can sometimes be leveraged to execute administrative operations on the database or the underlying server.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/admin/delete_student.php' with an injected 'stud_id' parameter. 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. 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 can also help mitigate such vulnerabilities.