Cross-site scripting (XSS) vulnerability in mod/wiki/lang/en/wiki.php in Moodle 2.0.x before 2.0.5 and 2.1.x before 2.1.2 allows remote attackers to inject arbitrary web script or HTML via the section parameter.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.