Unauthenticated Order Creation in Eventin WordPress Plugin

Executive Summary

This vulnerability in the Eventin WordPress plugin before version 4.1.16 allows unauthenticated users to create orders marked as paid without completing any payment. The flaw occurs because the plugin does not properly authorize order creation, enabling attackers to manipulate the order status through crafted requests to the REST API endpoint.

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Detection Guidance

Check if your Eventin WordPress plugin version is below 4.1.16. Inspect server logs for suspicious REST API requests to the plugin's order creation endpoints with manipulated order status parameters. Look for unauthenticated POST requests containing nonce values and status set to 'completed' without prior payment.

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Impact Analysis

This vulnerability could allow attackers to create fraudulent orders without paying, potentially leading to financial losses for the website owner. It may also disrupt legitimate transactions and damage the site's reputation.

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Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling unauthorized transactions without proper authorization or payment verification. Unauthenticated order creation with manipulated status may lead to improper data handling, financial discrepancies, and lack of audit trails, which are critical for regulatory compliance.

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Mitigation Strategies

Update the Eventin WordPress plugin to version 4.1.16 or later immediately. Review and remove any unauthorized orders marked as paid in your system. Implement additional server-side validation for order status changes to prevent unauthorized modifications.

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