The Video Conferencing with Zoom plugin for WordPress is vulnerable to Sensitive Information Exposure due to hardcoded encryption key on the 'vczapi_encrypt_decrypt' function in versions up to, and including, 4.2.1. This makes it possible for unauthenticated attackers to decrypt and view the meeting id and password.

The Video Conferencing with Zoom WordPress plugin before 3.8.17 does not have authorisation in its vczapi_get_wp_users AJAX action, allowing any authenticated users, such as subscriber to download the list of email addresses registered on the blog