No, see no one can. Not normally. She is a dimensional ship. You can't just walk into a dimensional ship without using the front doors or blowing a hole in her and I'd know if there was a big gaping hole in her. So, then, who are you and how did you get inside my ship?

[ The Doctor looks her over. Teenage girl, blue hair, short skirt... fairly normal for the 21st century of Earth. Not that it meant she was from there, of course. ]