Projectworlds Online Doctor Appointment Booking System SQL Injection Vulnerability in Appointment Deletion Feature

A critical SQL injection vulnerability has been identified in version 1.0 of the Projectworlds Online Doctor Appointment Booking System. The issue resides in the '/doctor/deleteappointment.php' file, where the 'id' parameter is improperly validated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication, potentially leading to unauthorized database access, data manipulation, and leakage of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to interfere with the application's database queries. This could result in 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 POST request to the '/doctor/deleteappointment.php' endpoint with a crafted 'id' parameter that includes malicious SQL payloads. This can be done using tools like sqlmap, which automates the process of finding and 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.