Image Upload field can access entire media library after upload

Hello,

Thank you for your feedback.

It is an issue of the image upload field. I've escalated this issue to the development team to fix it in the next update. You can use the field image to prevent accessing the media library.
https://docs.metabox.io/fields/image/

Hello,

After checking this with the development team, it is expected behavior. Only the upload area doesn't use the Media Library but when you click on the image, it will open the Media Library as well.

We will update the documentation about this case.