SQL Injection in ProSolution WP Client WordPress Plugin

Executive Summary

This vulnerability is an unauthenticated SQL injection in the ProSolution WP Client WordPress plugin before version 2.0.9. It occurs because the plugin does not properly sanitize a cookie value used in SQL queries. The flaw allows unauthenticated users to read arbitrary data from the database and delete records stored by the plugin. The issue arises as the plugin processes the malicious cookie on every request without requiring authentication or capability checks.

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Detection Guidance

Check if the ProSolution WP Client plugin version is below 2.0.9 by inspecting the WordPress admin panel or using WP-CLI with the command: wp plugin list | grep prosolution-wp-client. Monitor database queries for suspicious activity or errors related to SQL operations.

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Impact Analysis

This vulnerability can allow attackers to access sensitive data stored in your WordPress database, such as user information, posts, or plugin-specific records. Attackers could also delete critical data managed by the ProSolution WP Client plugin, potentially disrupting your website's functionality or causing data loss. Since no authentication is required, any unauthenticated user could exploit this issue.

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Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA if it results in unauthorized access or deletion of personal or protected health information. GDPR requires protecting personal data, and HIPAA mandates safeguarding health information. A breach could lead to legal penalties, fines, or reputational damage due to failure to meet regulatory requirements.

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Mitigation Strategies

Update the ProSolution WP Client plugin to version 2.0.9 or later immediately. If updating is not possible, consider disabling the plugin temporarily until an update is applied to prevent unauthenticated SQL injection and data deletion.

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