nope you cannot correct published or awaiting article on your own.
However, you can write a message to the admin informing them which part has the mistake and replace the right word.
Go to Contact
Type in your username and email address and your message
Recently, my post did attach the featured image. I told admin, gave him the link, and he amend my post.
I was going to say the same thing. I uploaded a photo, but when my article posted, and waiting for approval, for whatever reason, the photo did not transfer. I contacted them, and asked if they could upload a photo for me if I sent it to them, or either cancel the post, and let me redo it. That is the only thing that I don’t like about this site. Have to wait a good while for posts to be approved, and no options for revisions.