Two of those stabbed were transported for treatment via helicopter, the school said on Twitter, while the two others were treated on campus.
“All conscious,” the university tweeted about the victims.
No details were immediately available on what relationship, if any, existed between the assailant and the victims, said James Leonard, a school spokesman.
The school initially reported five people were stabbed, but later said the figure was four, said Lorena Anderson, a school spokeswoman.
School officials weren’t releasing additional information on the attacker, Leonard said.
“I’m sure more information will come out on the student shortly,” Leonard said of the assailant.