Tell him to upgrade to invision board, as invision board is made by the old ikonboard dev team - so there are certain similarities, although iB has no holes
AFAIK
Judging by the spelling and sentance structure of the guy who made the post I would guess he is 13 or 14, which means the hole would be well docmented as he has obviously read it from a dodgy site - which means that there would probably be a patch avalible.