18Kas
How dangerous is it to use CSS styles from an untrusted source?
I'm a moderator at a forum. We want to have a new style for the forum. We're thinking about announcing a competition to the users to come up with the best CSS design; we would adopt the best submission.
How dangerous would this be? How dangerous is it to use CSS styles from someone we don't trust? Is it possible for a CSS designer to add a malicious code or function to the CSS style itself?