Executive Summary

The Advanced Contact form 7 DB plugin for WordPress has a vulnerability known as Cross-Site Request Forgery (CSRF) in all versions up to and including 2.0.9. This vulnerability exists because the plugin does not properly validate nonces in the 'vsz_cf7_save_setting_callback' function. As a result, an attacker who is not authenticated can trick a site administrator into performing an unintended action, such as deleting a form entry, by making the administrator click on a malicious link.

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Impact Analysis

This vulnerability can allow an unauthenticated attacker to delete form entries on a WordPress site using the Advanced Contact form 7 DB plugin. The attacker achieves this by tricking a site administrator into clicking a malicious link, which causes the administrator to unknowingly perform the deletion action. This can lead to loss of important data stored in form entries and potentially disrupt site operations.

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Mitigation Strategies

The vulnerability exists in all versions of the Advanced Contact form 7 DB plugin up to and including 2.0.9 due to missing or incorrect nonce validation. To mitigate this vulnerability, you should immediately update the plugin to a version later than 2.0.9 where the issue is fixed.

Additionally, as a precaution, avoid clicking on suspicious links or performing actions from untrusted sources that could trigger forged requests.

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