Hello.
You are receiving this message because Michael Catanzaro (who is, if I
understand correctly, a GNOME developer, but not an official developer
of Epiphany, the GNOME web browser) advised me to contact the release
team what to do about the Epiphany browser vulnerability (initially
reported as regular bug #675217, and only long after that was a
malicious testcase constructed). The impasse is that nobody thinks
that this is a bug in his package, nobody is willing to do anything
(because it is someone else's bug or not a bug at all), and thus I
concluded that the bug needs to be escalated.