Listing an article which is under revision in your CV
It is not uncommon that a paper gets rejected after an "accepted with major revisions" and it will make a very negative impression if you get asked when your paper will be published after you got a rejection.

However, that should not prevent you from listing your pending submission, but better choose a modest phrasing. In this context, I have seen for example something like


  MyName. Paper title. Submitted to the International Journal of Foo.


or


  MyName. Paper title. Currently under review at the International Journal of Foo.


One reason to list your pending submissions can be to show what you have been working on in the last months, but it will not count as "achievement", even if you mention that it got an "accepted with major revisions".