GHSA-F7QW-5FGJ-247X Cross-site Scripting and Open Redirect in plone.app.contenttypes

Impact Plone is vulnerable to reflected cross site scripting and open redirect when an attacker can get a compromised version of the imageviewfullscreen page in a cache, for example in Varnish. The technique is known as cache poisoning. Any later visitor can get redirected when clicking on a link...