PHPGurukul Employee Record Management System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in PHPGurukul Employee Record Management System version 1.3. The issue resides in the file '/myexp.php', where the 'emp3ctc' parameter can be manipulated to inject malicious SQL code. This unsanitized input is used in SQL queries, allowing attackers to access the database, modify or delete data, and execute unauthorized operations. The vulnerability can be exploited remotely, posing a significant risk to the system's data integrity and availability.

Impact

Exploitation of this vulnerability allows for unauthorized database access, data manipulation, and potential disruption of services. This could lead to a loss of sensitive information and compromise the overall security of the system.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/erms/myexp.php' with the 'emp3ctc' parameter. The request must include a payload that exploits the SQL injection vulnerability, such as a boolean-based blind SQL injection payload that manipulates the SQL query processing.

Remediation

It is recommended to use prepared statements and parameter binding to prevent SQL injection attacks. Additionally, input validation and filtering should be implemented to ensure that user input meets expected formats and does not contain malicious content. Finally, database user permissions should be minimized to limit access rights.