Hey guys,
I tested it and his findings look right, the Uri isn't filtered. Somewhere along the rewrites of routing Security::uri_clean() wasn't called anymore and we're not cleaning the Uri input anymore. Maybe this was by design because we moved to Output encoding, but then the uri_filter value of app/config/config.php should still work and it doesn't.
I'm not sure where this was done before, can any of you look into this?
Jelmer