The Janrain Engage (formerly RPX) module 6.x-1.3 for Drupal does not validate the file for a profile image, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks and possibly execute arbitrary PHP code by causing a crafted avatar to be downloaded from an external login provider site.
https://exchange.xforce.ibmcloud.com/vulnerabilities/64848
https://exchange.xforce.ibmcloud.com/vulnerabilities/64847
http://www.securityfocus.com/bid/45926