Campcodes Courier Management System SQL Injection Vulnerability in ajax.php

A SQL injection vulnerability has been identified in Campcodes Courier Management System version 1.0. The issue arises in the 'Signup' function of the 'ajax.php' file, where insufficient input validation of the 'email', 'firstname', and 'lastname' parameters 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, with potential impacts including unauthorized database access, data modification or deletion, access to sensitive information, and disruption of service.

Reproduction

The vulnerability can be reproduced by sending a POST request to 'ajax.php' with the 'action' parameter set to 'signup'. The 'email', 'firstname', and 'lastname' parameters can be manipulated to inject SQL payloads. This can be done using tools like sqlmap, targeting the 'lastname' parameter to exploit the SQL injection.

Remediation

It is recommended to use prepared statements and parameter binding to prevent SQL injection, validate and filter user input, minimize database user permissions, and conduct regular security audits.