You can use WP Users Media plugin: https://wordpress.org/plugins/wp-users-media/
From description:
… disable the ability for users to access other members files and
attachments through the Media Button and Featured Image sections…
You can use WP Users Media plugin: https://wordpress.org/plugins/wp-users-media/
From description:
… disable the ability for users to access other members files and
attachments through the Media Button and Featured Image sections…