There's no exploid.
Just Pivx developer left himself a loophole for generate superblocks and bonus reward.
Given that most of the coins just copied their code, this vulnerability was transferred to them.
DMD has long eliminated this loophole.
So stop misleading users.
Just to be clear, coins with critical vulnerabilities are very quickly removed from Large exchangers.
Pivx is still trading on Bittrex so their vulnerabilities are under their control.