Cross-site scripting (XSS) vulnerability in mod/feedback/mapcourse.php in the Feedback module in Moodle through 2.4.11, 2.5.x before 2.5.9, 2.6.x before 2.6.6, and 2.7.x before 2.7.3 allows remote authenticated users to inject arbitrary web script or HTML by leveraging the mod/feedback:mapcourse capability to provide a searchcourse parameter.
https://moodle.org/mod/forum/discuss.php?d=275147
http://www.securitytracker.com/id/1031215
http://www.securityfocus.com/bid/71119
http://openwall.com/lists/oss-security/2014/11/17/11
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-47865