But coach Jeff Hopkins insists the job is only half-done.
The Victory will host Adelaide at the Home of the Matildas in Bundoora next Saturday with a two-goal advantage after Bunge struck twice in the second half in front of 4372 fans at Coopers Stadium on Sunday.
The winner will face either Melbourne City or Central Coast, who play at Casey Fields next Sunday after drawing 2-2 in Gosford, in the grand final.
"Really happy with the performance and the result as well," Hopkins told Network Ten.
"But the job's only half-done and you can see by how close the game was for most of the game that the tie's not over. We've still got a fair bit of work to do.
"Got a huge amount of respect for Adelaide, for the way that they're coached, for the team as well. We're taking nothing for granted."
Adelaide will have to beat Victory in Melbourne for the first time in nine years to reach the decider.
"We tried to attack, attack, attack," Adelaide coach Adrian Stenta told Network Ten.
"So I think that's what we need to do because we've gotta chase a two-goal deficit."
Sunday's game burst into life when Victory goalkeeper Courtney Newbon found Emily Gielnik with a wonderful defence-splitting pass.
Gielnik let rip with a wonderful left foot strike that clattered home.
🔥🚨 GOALKEEPER ASSIST IN THE SEMI-FINAL! WHAT A PASS.— Ninja A-League (@aleaguewomen) May 4, 2025Melbourne Victory keeper Courtney Newbon produces an extraordinary ball to set up Emily Gielnik for a beautifully taken opener.Watch #ADLvMVC live now on 10 Play & Paramount+. pic.twitter.com/rInOchPttg
But Adelaide responded almost immediately.
Fiona Worts won the ball in midfield and worked it out wide to Emily Hodgson, whose cross fell to Lucia Leon.
Emily Condon forced a good save from Newbon but Victory's defence were unable to clear it quickly enough and an unmarked Erin Healy nipped in to score.
In the 43rd minute, Reds goalkeeper Claudia Jenkins pulled out a world-class save to turn a ripping free kick from Alana Jancevski over the bar.
Adelaide defender Tiarna Karambasis was replaced by Chelsie Dawber after a head knock in the 62nd minute.
Gielnik came off in the 67th minute, which Hopkins said was precautionary due to cramp.
Victory's winner came after Jenkins denied Sara D'Appolonia in the 76th minute.
At the subsequent corner, Alana Murphy whipped in a flat delivery to the back post and Bunge powered home a bullet header.
HOW BIG COULD THAT GOAL BE?! ⚽�👀 @gomvfc take the lead again in the Semi-Final.— Ninja A-League (@aleaguewomen) May 4, 2025Claudia Bunge produces a classy header at a crucial moment in this tie.Watch #ADLvMVC live on 10 Play & Paramount+. pic.twitter.com/4h4C9WaAOd
Eleven minutes later, Bunge nodded home an Alex Chidiac cross.
"The deliveries today on our set pieces were good, so all I had to do was get my big, fat head on it," Bunge said.
14°C