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Executive Summary

The WP Remote Users Sync WordPress plugin before version 2.2.1 has a vulnerability where it lacks authorization and CSRF checks in an AJAX action. This allows any authenticated user, including subscribers, to delete the entire activity log of the plugin.

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Detection Guidance

Check if the WP Remote Users Sync plugin version is prior to 2.2.1 by inspecting the plugin files or WordPress admin panel. Look for unauthorized deletion of activity logs or suspicious AJAX requests in server logs.

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Impact Analysis

This vulnerability allows unauthorized users to delete the plugin's activity log, which could erase important records of user actions or system events. This may hinder monitoring, auditing, and troubleshooting efforts.

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Mitigation Strategies

Update the WP Remote Users Sync plugin to version 2.2.1 or later immediately. Review activity logs for unauthorized deletions and restrict user roles to prevent subscriber access to sensitive actions.

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