The Video Conferencing with Zoom WordPress plugin before 4.0.10 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

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