Neuner was scheduled to compete at the junior world championships in 2007. However, following her first World Cup win, she was instead appointed for the senior World Championships in Antholz, Italy. On 3 February 2007, she won gold in the sprint, beating Sweden's Anna Carin Olofsson by 2.3 seconds. It was her first world championship event ever and only her second victory at senior level. One day later, she also claimed the pursuit title, in spite of four shooting errors. Following a 14th place in the mass start, Neuner, alongside Martina Beck, Andrea Henkel and Kati Wilhelm, also won gold in the relay race on 11 February 2007. With three titles, she was the championship's most successful athlete and became the youngest triple world champion.