PHPGurukul Apartment Visitors Management System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in version 1.0 of the PHPGurukul Apartment Visitors Management System. The issue resides in the '/visitor-detail.php' file, where the 'editid' 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 potential leakage of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to manipulate database queries. This could result in unauthorized access to the database, modification or deletion of data, and exposure of sensitive information.

Reproduction

To reproduce this vulnerability, log into the application and navigate to the 'visitor-detail.php' page. Append a crafted SQL injection payload to the 'editid' parameter in the URL. The injected SQL code will be executed by the database, allowing for manipulation of the SQL query and potentially unauthorized access to database information.

Remediation

It is recommended to use prepared statements or parameterized queries to prevent SQL injection. Additionally, user input should be validated and sanitized before being processed. Implementing a web application firewall (WAF) and following the principle of least privilege for database users can also help mitigate this vulnerability.