WP Duplicate Page <= 1.7 - Missing Authorization to Authenticated (Contributor+) Sensitive Information Disclosure

The WP Duplicate Page plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.7. This is due to the plugin not properly verifying that a user is authorized to perform an action in the 'saveSettings' function. This makes it possible for authenticated attackers, with Contributor-level access and above, to modify plugin settings that control role capabilities, and subsequently exploit the misconfigured capabilities to duplicate and view password-protected posts containing sensitive information.