Cross-site scripting (XSS) vulnerability in Mahara before 1.3.6 allows remote authenticated users to inject arbitrary web script or HTML via vectors associated with HTML e-mail messages, related to artefact/comment/lib.php and interaction/forum/lib.php.
https://launchpad.net/mahara/+milestone/1.3.6
https://launchpad.net/mahara/+bug/772860
https://exchange.xforce.ibmcloud.com/vulnerabilities/67399
http://www.securityfocus.com/bid/47798