Campcodes Employee Management System SQL Injection Vulnerability in mark.php

A critical SQL injection vulnerability has been identified in version 1.0 of the Campcodes Employee Management System. The issue arises in the mark.php file, where insufficient validation of the 'id' parameter allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, leading to unauthorized database access, data manipulation, and potential leakage of sensitive information.

Impact

Exploitation of this vulnerability allows for unauthorized access to the database, manipulation or deletion of data, and access to sensitive information. Such actions pose a significant threat to system security and data integrity.

Reproduction

The vulnerability can be reproduced by sending a GET request to mark.php with an injected payload in the 'id' parameter. The injected SQL code can be crafted to exploit the application's database query handling, such as by using time-based blind SQL injection techniques.

Remediation

To address this vulnerability, it is recommended to use prepared statements and parameter binding to separate SQL code from user input, validate and filter user input to ensure it meets expected formats, minimize database user permissions, and conduct regular security audits.