[1.5.x] Fixed #20444 -- Cookie-based sessions does not include a remote code execution-warning
[1.5.x] Fixed #20444 -- Cookie-based sessions does not include a remote code execution-warning

Backport of d5ce2ff5e4 from master

ccn-2m/django,imtapps/django-imt-fork,bliti/django-nonrel-1.5,bliti/django-nonrel-1.5,imtapps/django-imt-fork,ccn-2m/django,ccn-2m/django,imtapps/django-imt-fork,ccn-2m/django,bliti/django-nonrel-1.5