The Social Sharing Plugin – Kiwi plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 2.1.7 via the 'kiwi-nw-pinterest' class. This makes it possible for unauthenticated attackers to view limited content from password protected posts.
The Kiwi Social Share plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the kiwi_social_share_get_option() function called via the kiwi_social_share_get_option AJAX action in version 2.1.0. This makes it possible for unauthenticated attackers to read and modify arbitrary options on a WordPress site that can be used for complete site takeover. This was a previously fixed vulnerability that was reintroduced in this version.