I tried to paste an Image from Clipboard into the CKEditor 4.5.1. Unfortunatelly, that doesn't work. I used Firefox, version 42. When I  looked in the javascript error console, it reported that "TypeError: b is undefined, ckeditor.js:1139:112". The variable  d.config.filebrowserImageUploadUrl could not be found.

I set the variable in the file ckeditor-config.js in the folder scripts, but that didn't solve the problem. As far as I can tell, Pasting Image from Clipboard does not work in this forum neither, but I don't know whether this is in purpose.

Pasting via the button "Paste from Word" works as it inserts a 64base formated image, but that's not what I'm searching for. Also normal upload of files works fine and puts the file in the correct folder (logbook/year/)