The group who successfully hacked into the systems of CNET were willing to sell the information gained for as little as one Bitcoin (roughly $620).
According to Softpedia, the attackers stole usernames, emails and encrypted passwords. A representative from CBS Interactive, which owns the CNET publication, admitted that the servers had been accessed by an attacker and said that the issue had been identified and eliminated, but they would keep their eyes on the matter.
W0rm did not provide the full path to the exploit, and it appears that the motivation behind the attack was to raise security awareness, a high-profile website being the best way to achieve this goal. Although the passwords retrieved by the hackers are encrypted, there is no information on the algorithm used to protect them or if they were salted and hashed.