Cross-site scripting (XSS) vulnerability in mod/wiki/pagelib.php in Moodle 2.0.x before 2.0.5 and 2.1.x before 2.1.2 allows remote authenticated users to inject arbitrary web script or HTML via a wiki comment.
https://bugzilla.redhat.com/show_bug.cgi?id=747444
http://moodle.org/mod/forum/discuss.php?d=188310
http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=a459fd90625ae44d7b3ac10b65da2dc631a418e7