Projectworlds Online Doctor Appointment Booking System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in the Online Doctor Appointment Booking System version 1.0. The issue resides in the file '/patient/invoice.php', specifically within the 'appid' parameter. This vulnerability allows attackers to inject malicious SQL queries, leading to unauthorized database access, data manipulation, and potential leakage of sensitive information. The vulnerability can be exploited remotely without any authentication.

Impact

Exploitation of this vulnerability allows for SQL injection, where attackers can manipulate database queries. This could lead to unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database. The vulnerability poses a significant risk to the application's data integrity and security.

Reproduction

The vulnerability can be reproduced by sending a request to the '/patient/invoice.php' file with a crafted 'appid' 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. Additionally, input validation and filtering should be implemented to ensure user input conforms to expected formats. Minimizing database user permissions and conducting regular security audits can also help mitigate such vulnerabilities.