Fix security issue with uploads
Fix security issue with uploads

don't allow guests to upload files

kaufmo/koala-framework,yacon/koala-framework,nsams/koala-framework,yacon/koala-framework,koala-framework/koala-framework,nsams/koala-framework,kaufmo/koala-framework,koala-framework/koala-framework,nsams/koala-framework,kaufmo/koala-framework,yacon/koala-framework