itsourcecode Gym Management System SQL Injection Vulnerability in ajax.php

A critical SQL injection vulnerability has been identified in the itsourcecode Gym Management System version 1.0. The issue resides in the file ajax.php, specifically within the save_member action. The vulnerability is triggered by the umember_id parameter, which is not properly validated before being used in SQL queries. This flaw allows remote attackers to inject malicious SQL code, potentially leading to unauthorized database access, data manipulation, and exposure of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to interfere with the application's database queries. This could result in 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 ajax.php?action=save_member with a crafted payload that includes an SQL injection in the umember_id parameter. This payload can be designed to exploit time-based blind SQL injection, using SQL injection techniques to manipulate the SQL query execution and extract information from the database.

Remediation

To address this vulnerability, it is recommended to implement input validation and sanitization for the umember_id parameter, ensuring that user input is properly cleaned before being used in SQL queries. Additionally, using prepared statements and parameterized queries can help prevent SQL injection attacks by separating SQL code from user data.