Finally returning to action after a 19-month recovery from serious injuries, the former BMW and Renault driver won the recent Ronde Gomitolo di Landa rally at the wheel of a Subaru Impreza.
But Kubica, who clearly no longer enjoys the full mobility of his right arm in the wake of his February 2011 rally crash, crashed during another minor Italian rally - the San Martino di Castrozza - at the weekend.
Italian reports say the 27-year-old struck a tree, and photographs of the heavily damaged Subaru depict the car on its side in a ditch.
Kubica, and his co-driver, were videotaped walking away from the crash unscathed. Event organisers confirmed they were unhurt.