Code-Projects Simple Scheduling System SQL Injection Vulnerability in addsubject.php

A SQL injection vulnerability has been identified in Code-Projects Simple Scheduling System version 1.0. The issue resides in the addsubject.php file, where the subcode parameter is manipulated, allowing for the injection of malicious SQL queries. This vulnerability can be exploited remotely, without any authentication.

Impact

Exploitation of this vulnerability allows for unauthorized database access, manipulation of data, and potential disruption of services.

Reproduction

The vulnerability can be reproduced by sending a POST request to the /schedulingsystem/addsubject.php endpoint. The request must include the subcode parameter with a crafted payload that exploits the SQL injection flaw, such as a time-based blind SQL injection payload that uses the SQL SLEEP function.

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.