The WP Private Content Plus plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.6.1 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles such as administrator.

The WP Private Content Plus plugin for WordPress is vulnerable to information disclosure in all versions up to, and including, 3.6. This is due to the plugin not properly restricting access to posts via the REST API when a page has been made private. This makes it possible for unauthenticated attackers to view protected posts.

The WP Private Content Plus plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.1. This is due to missing or incorrect nonce validation on the save_groups() function. This makes it possible for unauthenticated attackers to add new group members via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The wp-private-content-plus plugin before 2.0 for WordPress has no protection against option changes via save_settings_page and other save_ functions.