SourceCodester Apartment Visitor Management System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in SourceCodester Apartment Visitor Management System version 1.0. The issue arises in the file '/search-result.php', where the 'searchdata' parameter is processed without proper validation, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, leading to unauthorized database access, data manipulation, and potential service disruption.

Impact

Exploitation of this vulnerability allows for SQL injection, with attackers able to access, modify, or delete database information. This could also lead to unauthorized control over the system or cause service interruptions.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/search-result.php' with a crafted 'searchdata' parameter that includes malicious SQL payloads. Several types of SQL injection techniques can be used, including boolean-based blind, time-based blind, and UNION query injections.

Remediation

To address this vulnerability, 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.