PHPGurukul Employee Record Management System SQL Injection Vulnerability in Password Change Function

A critical SQL injection vulnerability has been identified in the PHPGurukul Employee Record Management System version 1.3. The issue resides in the changepassword.php file, specifically within an unknown function that handles the currentpassword parameter. This vulnerability allows remote attackers to inject malicious SQL queries, which could be exploited to gain unauthorized access to the database, manipulate or delete data, and access sensitive information.

Impact

Exploitation of this vulnerability could lead to unauthorized database access, allowing attackers to modify or delete data, access sensitive information, and potentially disrupt application services.

Reproduction

The vulnerability can be reproduced by sending a POST request to the changepassword.php file with a crafted currentpassword parameter that includes malicious SQL payloads. This input is not properly sanitized, allowing the injected SQL to be executed by the database.

Remediation

To address this vulnerability, it is recommended to implement prepared statements and parameter binding to prevent SQL injection. Additionally, input validation and filtering should be applied to ensure that user input meets expected formats, blocking malicious data. Finally, database user permissions should be minimized, granting only the necessary rights to the account used for database connections.