The attacker, who is a product of United's academy set-up, joins the League Two side until the turn of the calendar year, following loan spells at North Ferriby United and Cheltenham Town last season.
The 20-year-old made 14 appearances for the Villagers in a loan spell between September 2016 and January 2017, before scoring two goals in 16 appearances with the Robins in the second half of the campaign.
For the Iron, Wootton has made seven starts in all competitions, along with 35 substitute appearances, scoring on five occasions.
He links up with the Boro ahead of their away encounter with his former loan club Cheltenham on Saturday.
