PHPGurukul Small CRM SQL Injection Vulnerability in Manage Tickets Admin Page

A critical SQL injection vulnerability has been identified in PHPGurukul Small CRM version 3.0, specifically within the admin manage-tickets.php file. The issue arises from inadequate validation of user input in the aremark parameter, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, potentially leading to unauthorized access to the database, data manipulation, and leakage of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to access, modify, or delete database information. This could result in unauthorized data manipulation or access to sensitive information.

Reproduction

To reproduce this vulnerability, send a POST request to the /admin/manage-tickets.php endpoint with a crafted payload in the aremark parameter. The payload should be designed to exploit the time-based blind SQL injection vulnerability, such as by using a SQL injection payload that leverages the MySQL SLEEP function to create a time delay, indicating successful injection.

Remediation

It is recommended to implement input validation and sanitization for user inputs, particularly for parameters that are used in SQL queries. Additionally, using prepared statements and parameterized queries can help prevent SQL injection vulnerabilities.