Code-Projects Student File Management System SQL Injection Vulnerability in Update Student PHP File

A SQL injection vulnerability exists in Code-Projects Student File Management System version 1.0, specifically within the admin/update_student.php file. The vulnerability arises because the application directly incorporates several POST parameters, including stud_id, into SQL queries without adequate validation or parameterization. This oversight enables authenticated attackers to inject malicious SQL commands, potentially leading to unauthorized alterations of student records, data extraction, or a complete compromise of the database's integrity. Notably, this vulnerability can be exploited remotely without any authentication requirements.

Impact

Exploitation of this vulnerability allows for SQL injection, where attackers can manipulate database queries. This could result in unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database.

Reproduction

To reproduce this vulnerability, send a POST request to the admin/update_student.php file with a crafted stud_id parameter that includes malicious SQL code. The injected SQL will be executed by the database, allowing for exploitation of the SQL injection vulnerability.

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 that user input meets expected formats, blocking malicious data. Finally, database user permissions should be minimized, ensuring that the account used for database connections has only the necessary privileges.