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 Sensitive Information Exposure in all versions up to, and including, 3.6.2 via the 'validaterestrictions' function. This makes it possible for unauthenticated attackers to extract sensitive data including the content of resticted posts on archive and feed pages.

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