Directory traversal vulnerability in Plone CMS 5.x through 5.0.6 and 4.2.x through 4.3.11 allows remote administrators to read arbitrary files via a .. (dot dot) in the path parameter in a getFile action to Plone/++theme++barceloneta/@@plone.resourceeditor.filemanager-actions.
https://plone.org/security/hotfix/20160830/filesystem-information-leak
http://www.securityfocus.com/bid/92752
http://www.securityfocus.com/archive/1/539572/100/0/threaded
http://www.openwall.com/lists/oss-security/2016/09/05/5