PHPGurukul e-Diary Management System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in PHPGurukul e-Diary Management System version 1.0. The issue resides in the file '/manage-notes.php', where the 'id' parameter is manipulated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication, leading to unauthorized access and manipulation of the database.

Impact

Exploitation of this vulnerability allows attackers to inject malicious SQL queries, potentially leading to unauthorized database access, data manipulation or deletion, and execution of administrative operations.

Reproduction

The vulnerability can be reproduced by sending a GET request to '/manage-notes.php' with a crafted 'id' parameter that includes SQL injection payloads. The injected SQL code is executed by the application, allowing the attacker to manipulate the database. 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 that user input conforms to expected formats. Finally, database user permissions should be minimized to limit access rights.