Multiple cross-site scripting (XSS) vulnerabilities in the course-tags functionality in tag/coursetags_more.php in Moodle 2.0.x before 2.0.2 allow remote attackers to inject arbitrary web script or HTML via the (1) sort or (2) show parameter.
http://openwall.com/lists/oss-security/2011/11/14/1
http://moodle.org/mod/forum/discuss.php?d=170008
http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=73de6fa06f6923278950a445bd69b3fbc1e518d2