Beth Lancaster and Brandon Sawyers from Virginia Tech reported a vulnerability in Horizon. By injecting Angularjs template in dashboard forms, such as image's description, an authenticated user may trigger a cross-site-scripting vulnerability when another user browses the affected pages. It may result in potential assets theft like user access credentials. All Horizon setups are affected.

OpenStack Horizon 9.x through 9.1.1, 10.x through 10.0.2, and 11.0.0 allows remote authenticated administrators to conduct XSS attacks via a crafted federation mapping.