I do not know what would be included in universal morality, so don't ask me to define it. I'm hoping someone who believes, has faith in, and/or understands what it is can explain it.
There are some, like Darius used to, who claim that universal morality can be empirically proven to exist. But whenever I ask, these people never make any attempt to even begin to prove it. Nonetheless, it's such a common concept--although I can imagine usefull reasons why people would believe that their personal opinions are actually universal truths--i'm interested, and honestly suprised that there isn't more information on it.
I am bias against universal relativism, but all signs point in that direction. If anyone has some good arguments against relativism, and/or for universalism, when it comes to morality: please share.