SourceCodester Responsive E-Learning System SQL Injection Vulnerability in Teacher Management

A SQL injection vulnerability has been identified in SourceCodester Responsive E-Learning System version 1.0. The issue resides in the file '/admin/add_teacher.php', where the 'username' parameter is manipulated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, potentially leading to unauthorized database access, data manipulation, and leakage of sensitive information.

Impact

Exploitation of this vulnerability allows for unauthorized access to the database, manipulation or deletion of data, and access to sensitive information. Such actions could disrupt services and pose a significant threat to overall system security and business operations.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/admin/add_teacher.php' with the 'username' parameter crafted to include a SQL injection payload. 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, validate and filter user input, minimize database user permissions, and conduct regular security audits.