MultiVendorX WooCommerce Multivendor Marketplace SQL Injection Vulnerability

A SQL injection vulnerability has been identified in the MultiVendorX - WooCommerce Multivendor Marketplace AI Powered Solutions plugin for WordPress, affecting all versions through 5.0.9. The vulnerability arises from inadequate escaping of user-supplied data in the 'order_by' parameter, allowing authenticated attackers with subscriber-level access or higher to inject additional SQL queries. This exploitation could lead to unauthorized access to sensitive database information. The issue is particularly concerning because it can be exploited by any logged-in user when the plugin's store approval setting automatically approves store owners, a default configuration. This approval allows users to self-register as store owners and gain access to the vulnerable transactions endpoint via the Stores REST API.

Impact

Exploitation of this vulnerability allows for SQL injection, where an attacker can manipulate SQL queries to extract sensitive information from the database.

Reproduction

To reproduce this vulnerability, an authenticated user with subscriber-level access or higher can send a request to the vulnerable endpoint, including a crafted 'order_by' parameter that exploits the SQL injection flaw. This can be done through the WordPress REST API, taking advantage of the automatic store approval feature to gain the necessary permissions.

Remediation

Users are advised to update the MultiVendorX WooCommerce Multivendor Marketplace AI Powered Solutions plugin to version 5.0.10 or later.