SourceCodester Class and Exam Timetabling System SQL Injection Vulnerability

A SQL injection vulnerability has been identified in SourceCodester Class and Exam Timetabling System version 1.0. The issue resides in the '/edit_subject.php' file, where the 'id' parameter is manipulated to inject malicious SQL queries. This vulnerability can be exploited remotely, without requiring authentication.

Impact

Exploitation of this vulnerability allows unauthorized access to the database, potential leakage or modification of sensitive data, and could disrupt services, posing a significant risk to overall system security and business operations.

Reproduction

The vulnerability can be reproduced by sending a crafted request to the '/edit_subject.php' file with a manipulated 'id' parameter. This can be done using a tool like sqlmap, which can automate the process of exploiting SQL injection vulnerabilities.

Remediation

To address this vulnerability, 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 enhance overall security.