SourceCodester Simple Doctors Appointment System SQL Injection Vulnerability

A SQL injection vulnerability has been identified in SourceCodester Simple Doctors Appointment System version 1.0. The issue resides in the file '/admin/ajax.php' during the 'login2' action, where the 'email' parameter is not properly validated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication.

Impact

Exploitation of this vulnerability allows unauthorized access to the database, where attackers can leak, modify, or delete data. Additionally, this could lead to unauthorized control over the system or cause a disruption of service.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/doctors_appointment/admin/ajax.php?action=login2' with an injected payload in the 'email' parameter. This can be done using tools like sqlmap, which automates the process of exploiting SQL injection vulnerabilities.

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.