Burton boss Gary Rowett described the Congolese midfielder as "brilliant" and opposite number Gareth Ainsworth hailed him as "a talent".
After a goalless first half, Maghoma pounced twice on mistakes by Michael Harriman to allow Burton to bounce back from Friday's 7-1 mauling at Port Vale to claim third place in League Two.
A relieved Rowett said: "We created lots and lots of chances and probably should have scored more and limited Wycombe to very, very few opportunities.
"That's all we asked of the lads - to go out and do themselves proud. We let ourselves down on Friday night and that was a magnificent response. It's the first clean sheet we've had in a while and I'm really pleased with that.
"Jacques Maghoma was brilliant. We said to the lads that we just needed to get the ball to him because we knew he could get something out of the game for us.
"He certainly did that and I think he was a worthy matchwinner. That might just be the win that gets us enough points to make the play-offs as the very minimum and we're now looking to make third place our aim."
Chairboys boss Ainsworth was hugely impressed with the performance of match-winner Maghoma
"Maghoma has won the game for them. He's a talent that boy - very direct, very quick going forward.
"On the positive side, we had a lot of young kids out there getting experience and I thought Matty Ingram was outstanding."
- Sports & Recreation
- Gareth Ainsworth
- Jacques Maghoma