Code-Projects Online Event Judging System SQL Injection Vulnerability in add_contestant.php

A SQL injection vulnerability has been identified in Code-Projects Online Event Judging System version 1.0. The issue resides in the add_contestant.php file, where the fullname parameter is manipulated to inject malicious SQL code. This vulnerability allows remote exploitation, with the injected SQL being executed in a time-based blind manner, potentially leading to unauthorized database access and data manipulation.

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 manipulation, and in some cases, executing administrative operations on the database.

Reproduction

The vulnerability can be reproduced by sending a POST request to the add_contestant.php file with a crafted fullname parameter. The injected SQL payload can be designed to exploit the application's SQL query handling, such as using time-based blind SQL injection techniques to extract information from the database.

Remediation

It is recommended to use prepared statements and parameter binding to prevent SQL injection vulnerabilities. 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 mitigate such vulnerabilities.