Cross-site scripting (XSS) vulnerability in the API in Ubuntu Metal as a Service (MaaS) 1.2 and 1.4 allows remote attackers to inject arbitrary web script or HTML via the op parameter to nodes/.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-1110
https://bugs.launchpad.net/maas/%2Bbug/1251336