Zendesk: Stored XSS via Angular Expression injection on developer.zendesk.com

developer.zendesk.com is vulnerable to stored XSS via Angular template injection. To replicate: Browse to https://developer.zendesk.com Sign up with an arbitrary email address and the following name: "'a'.constructor.prototype.charAt=.join;$eval'x=alert1';" Observe the popup. This is a stored...