Executive Summary

The Magic Import Document Extractor plugin for WordPress has a vulnerability due to a missing capability check in the ajax_sync_usage() function in all versions up to and including 1.0.4.

This flaw allows unauthenticated attackers to modify the plugin's license status and credit balance without proper authorization.

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Impact Analysis

Because attackers can modify the license status and credit balance without authentication, they could potentially gain unauthorized access to premium features or services of the plugin.

This unauthorized modification could lead to misuse of the plugin's resources, loss of revenue, or disruption of service for legitimate users.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability involves unauthorized modification of plugin data via the ajax_sync_usage() AJAX function without proper capability checks. Detection can focus on monitoring AJAX requests to the WordPress site, specifically POST requests targeting the ajax_sync_usage action.'}, {'type': 'paragraph', 'content': 'You can detect suspicious activity by inspecting web server logs or using network monitoring tools to identify unauthenticated POST requests to the endpoint handling ajax_sync_usage, which may include parameters related to license status or credit balance updates.'}, {'type': 'list_item', 'content': "Use command-line tools like curl or wget to simulate or detect such requests, for example: curl -X POST -d 'action=ajax_sync_usage' https://yourwordpresssite.com/wp-admin/admin-ajax.php"}, {'type': 'list_item', 'content': "Search web server logs for POST requests to admin-ajax.php with the action=ajax_sync_usage parameter, e.g., using grep: grep 'action=ajax_sync_usage' /var/log/apache2/access.log"}, {'type': 'list_item', 'content': 'Monitor for unexpected changes in WordPress options related to license status or credit balances, which are updated by this AJAX call.'}] [1]

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Mitigation Strategies

Immediate mitigation steps include updating the Magic Import Document Extractor plugin to a version later than 1.0.4 where this vulnerability is fixed.

If an update is not immediately available, restrict access to the AJAX endpoint handling ajax_sync_usage by implementing additional access controls, such as requiring authentication or limiting access by IP address.

Monitor and audit changes to license status and credit balances within the WordPress admin to detect unauthorized modifications.

Consider temporarily disabling or removing the plugin until a secure version is installed.

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