Cross-site scripting (XSS) vulnerability in REDCap before 4.14.3 allows remote authenticated users to inject arbitrary web script or HTML via uppercase characters in JavaScript events within user-defined labels.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-6412
http://ctsi.psu.edu/wp-content/uploads/2013/03/REDCap-Release-Notes-Version5.pdf