Code-Projects Car Rental System SQL Injection Vulnerability in Admin Approval File

A critical SQL injection vulnerability has been identified in version 1.0 of the Code-Projects Car Rental System. The issue resides in the '/admin/approve.php' file, where insufficient validation of the 'id' parameter allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, potentially leading to unauthorized database access, data manipulation, and exposure of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to interfere with the application's database queries. This could lead to unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database.

Reproduction

The vulnerability can be reproduced by sending a crafted HTTP request to the '/admin/approve.php' file with a malicious 'id' parameter. The injected SQL payload can exploit the application's database query handling, bypassing any input validation and potentially allowing the attacker to manipulate database operations.

Remediation

To address this vulnerability, it is recommended to implement prepared statements and parameter binding to separate SQL code from user input, ensuring that injected data is not executed as part of the SQL command. Additionally, input validation and filtering should be applied to confirm that user data meets expected formats before processing. Minimizing database user permissions and conducting regular security audits can further enhance the application's resilience against such vulnerabilities.