PHPGurukul Vehicle Parking Management System SQL Injection Vulnerability in Signup Functionality

A critical SQL injection vulnerability has been identified in PHPGurukul Vehicle Parking Management System version 1.13. The issue resides in the '/users/signup.php' file, where the 'email' parameter can be manipulated to inject malicious SQL code. This vulnerability can be exploited remotely, without any authentication, allowing attackers to interfere with SQL queries and execute unauthorized database operations.

Impact

Exploitation of this vulnerability allows attackers to inject malicious SQL queries via the 'email' parameter, leading to unauthorized database access and manipulation. This could include leaking, modifying, or deleting sensitive data, and potentially gaining full control over the application or underlying system.

Reproduction

To reproduce this vulnerability, send a POST request to '/vpms/users/signup.php' with the 'email' parameter crafted to include a time-based blind SQL injection payload. This payload should be designed to exploit the application's SQL query handling by, for example, using a SQL injection technique that causes the database to pause execution for a specified duration, indicating successful injection.

Remediation

It is recommended to implement prepared statements and parameter binding to prevent SQL injection. Additionally, input validation and filtering should be applied to ensure that user input meets expected formats, thereby blocking malicious data. Finally, database user permissions should be minimized to limit access rights, ensuring that the database account used by the application has only the necessary privileges.