Code-Projects Online Event Judging System SQL Injection Vulnerability in Create Account PHP

A SQL injection vulnerability has been identified in version 1.0 of the Code-Projects Online Event Judging System. The issue arises in the '/create_account.php' file, where the 'fname' parameter is improperly validated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without authentication, potentially leading to unauthorized database access, data manipulation, and exposure of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, where attackers can interfere with the application's database queries. This could lead to unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database.

Reproduction

The vulnerability can be reproduced by sending a POST request to the '/create_account.php' endpoint with crafted payloads that exploit the SQL injection flaw in the 'fname' parameter. This can be done using tools like sqlmap, which automates the process of finding and exploiting SQL injection vulnerabilities.

Remediation

To address this vulnerability, it is recommended to implement prepared statements and parameter binding to prevent SQL injection. Additionally, user input should be validated and filtered to ensure it meets expected formats. Minimizing database user permissions and conducting regular security audits can also help enhance the application's security.