I am working with a ticket system which is a custom post type. Tickets can be created on the front end of the site. Registered users can post a new ticket, which can be moderated by administrator and needs to add a comment after approving it. WordPress is not allowing other authors' posts to have new comments added by default. I mean, it only allow us to post a new comment, if we are the author of the post.
Is there any action, hook, or function that would allow administrators to add a new comment to any author's posts from the back end, while moderating the post.