PHPGurukul Pre-School Enrollment System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in PHPGurukul Pre-School Enrollment System version 1.0. The issue resides in the '/admin/index.php' file, where the 'username' parameter is manipulated to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication or authorization.

Impact

Exploitation of this vulnerability allows attackers to execute arbitrary SQL commands, potentially leading to unauthorized access to the database, manipulation or deletion of data, and access to sensitive information. Such actions could disrupt services and pose a significant threat to overall system security.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/admin/index.php' with the 'username' parameter. Various payloads can be used to exploit the SQL injection, including boolean-based blind, error-based, time-based blind, and UNION query injection techniques. The SQLMap tool can automate this exploitation.

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.