Cross-site scripting (XSS) vulnerability in the Spike PHPCoverage (aka spikephpcoverage) library, as used in Moodle 2.0.x before 2.0.2 and other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
http://openwall.com/lists/oss-security/2011/11/14/1
http://moodle.org/mod/forum/discuss.php?d=170005
http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=bd654f0ced8af925c27b7c94321f0c299b50b38e