The 20-year-old scored on his debut for Paul Sturrock's side in a 3-2 defeat at the hands of Exeter City on the opening day of the season.
Since then, Cornick has made 13 appearances for the Glovers and scored three goals.
The loan extension means Cornick will now remain at Huish Park until November.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Barnet | 30 | 19 | 6 | 5 | 60 | 30 | 30 | 63 |
| 2 | Forest Green RoversForest Green | 29 | 16 | 11 | 2 | 48 | 22 | 26 | 59 |
| 3 | York City | 28 | 17 | 6 | 5 | 54 | 26 | 28 | 57 |
| 4 | Oldham AthleticOldham | 28 | 14 | 9 | 5 | 46 | 30 | 16 | 51 |
| 5 | Gateshead | 28 | 14 | 7 | 7 | 51 | 36 | 15 | 49 |
| 6 | Halifax TownHalifax | 28 | 12 | 9 | 7 | 34 | 26 | 8 | 45 |
| 7 | Rochdale | 25 | 13 | 3 | 9 | 38 | 22 | 16 | 42 |
| 8 | AltrinchamAltrincham | 27 | 11 | 9 | 7 | 44 | 32 | 12 | 42 |
| 9 | Solihull MoorsSolihull | 29 | 12 | 6 | 11 | 46 | 41 | 5 | 42 |
| 10 | Sutton UnitedSutton | 28 | 11 | 8 | 9 | 39 | 36 | 3 | 41 |
| 11 | Southend UnitedSouthend | 28 | 10 | 9 | 9 | 33 | 30 | 3 | 39 |
| 12 | Hartlepool UnitedHartlepool | 29 | 9 | 12 | 8 | 34 | 35 | -1 | 39 |
| 13 | Eastleigh | 28 | 9 | 11 | 8 | 37 | 36 | 1 | 38 |
| 14 | Yeovil TownYeovil | 29 | 10 | 8 | 11 | 33 | 35 | -2 | 38 |
| 15 | Tamworth | 28 | 10 | 7 | 11 | 32 | 44 | -12 | 37 |
| 16 | Dagenham & RedbridgeDag & Red | 28 | 8 | 8 | 12 | 41 | 40 | 1 | 32 |
| 17 | Woking | 28 | 7 | 10 | 11 | 29 | 39 | -10 | 31 |
| 18 | Braintree TownBraintree | 29 | 8 | 7 | 14 | 28 | 39 | -11 | 31 |
| 19 | Aldershot TownAldershot | 28 | 6 | 12 | 10 | 42 | 48 | -6 | 30 |
| 20 | Fylde | 29 | 8 | 4 | 17 | 35 | 59 | -24 | 28 |
| 21 | WealdstoneWealdstone | 28 | 5 | 11 | 12 | 32 | 42 | -10 | 26 |
| 22 | Maidenhead UnitedMaidenhead | 28 | 7 | 5 | 16 | 35 | 57 | -22 | 26 |
| 23 | Boston UnitedBoston | 26 | 4 | 7 | 15 | 24 | 44 | -20 | 19 |
| 24 | Ebbsfleet | 30 | 1 | 9 | 20 | 21 | 67 | -46 | 12 |
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