Google Chrome before 45.0.2454.85 does not display a location bar for a hosted app's window after navigation away from the installation site, which might make it easier for remote attackers to spoof content via a crafted app, related to browser.cc and hosted_app_browser_controller.cc.
Software security is not security software. Here we're concerned with topics like authentication, access control, confidentiality, cryptography, and privilege management.