The (1) Organization and (2) Locations APIs and UIs in Foreman before 1.11.4 and 1.12.x before 1.12.0-RC3 allow remote authenticated users to bypass organization and location restrictions and (a) read, (b) edit, or (c) delete arbitrary organizations or locations via unspecified vectors.
A vulnerability allowing XSS in Foreman 1.7.0 and higher was reported from upstream. It is allowed to store the key/value parameters globally or assigned to various objects and using a tickbox in the UI the values can be hidden to mask them from casual viewing. The tickbox that hides/shows the value fails to handle HTML properly and so is vulnerable to an XSS issue where HTML can be stored in a parameter, and executed by another user if they later tick the hide/show box.
Upstream bug:
http://projects.theforeman.org/issues/11859