The 32-year-old is making the second defense of the title he ripped from Vyacheslav Senchenko last April, but faces a dangerous prospect in Broner, who is stepping up two weights.
The 'Magic Man' said that his opponent, although unbeaten, has not defeated anyone of note and believes that his experience will count to his advantage.
"The reason we got here is because we are both talented," he told reporters. "At world class level it shows character and he's going to have to show it because he's fought one bum after another.
"I got here for a reason and I've been here for a long time. I got character from those experiences - he doesn't, they gave him what he has. The character flaws in him will be exposed."
Malignaggi brings a 32-for record, while Broner has won all of his 26 bouts - 22 by way of knockout.