XSS vulnerability in googlesharedspaces.appspot.com

[Miguel Lourenco]

Hi,

In the context of the ES hackit (goto/es-hackit) we found an XSS vulnerability in Google Shared Spaces. Please see https://b.corp.google.com/issue?id=4973944.

There are one or two other security issues we discovered so if there is a buganizer component for the project please let me know so that I can file the bugs there.