Missing Authorization vulnerability in MetaBox.Io Meta Box – WordPress Custom Fields Framework allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Meta Box – WordPress Custom Fields Framework: from n/a through 5.9.10.

The Meta Box WordPress plugin before 5.9.4 does not prevent users with at least the contributor role from access arbitrary custom fields assigned to other user's posts.

The Meta Box plugin before 4.16.2 for WordPress mishandles the uploading of files to custom folders.

The Meta Box plugin before 4.16.3 for WordPress allows file deletion via ajax, with the wp-admin/admin-ajax.php?action=rwmbdeletefile attachmentid parameter.