Refill URL

Hi!
Recently I got Wordfence telling me that people are surfing xxx.com//wp-json/contact-form-7/v1/contact-forms/462/refill on a site I use CF7 on. And that URL actually displays data.
Excuse me if that′s a noob question but I didn′t run across this before and I′m not sure if it′s supposed to be that way or if I missed a setting taking care for this (or got a setting wrong). Could you please tell me if I′ll have to take care of this and how?
Thanks in advance!