Sylvan Ebanks-Blake and Bjorn Sigurdarson scored to give Wolves their third straight Championship win and keep Peterborough pointless.
Posh could have been in front early on but Lee Tomlin could only shoot wide.
They were made to pay on 33 minutes though, when Wolves striker Ebanks-Blake scored from the spot after being upended in the area by Grant McCann.
Sigurdarson secured the win late on when he lifted the ball over Peterborough goalkeeper Robert Olejnik.
The defeat leaves Darren Ferguson's Peterborough rooted to the bottom of the table, having conceded 16 goals in their seven Championship games.
Peterborough's last league win came back in March when they beat Leicester City 1-0 at London Road.
It could have been different had either Tomlin converted his early chance or McCann beaten Carl Ikeme from long range.
McCann then lost the ball in midfield and, in a poor attempt to win it back, brought down Ebanks-Blake who blasted the resulting spot-kick straight down the middle.
Kevin Doyle twice went close to doubling Wolves' lead before the break before Ebanks-Blake was denied by Olejnik at the start of the second period.
Peterborough substitute George Boyd put a long-range effort wide as the home side struggled to create chances.
Their miserable afternoon was sealed eight minutes from time when Sigurdarson, released by Doyle's fine through-ball, calmly flicked the ball over Olejnik.
Peterborough manager Darren Ferguson:
"I was embarrassed by what I saw. We gave away two more dreadful goals and that has been the story of our season.
"Everyone knows the situation we are in and it is up to us to do something about it. I've had enough time to look at things and now need to make some big decisions.
"The easiest thing for me would be to walk away, but I've never walked away from anything. I've not got that in me."
Wolves manager Stale Solbakken:
"We had the chances to finish the game before we did and it was good to see Bjorn come on and get that second goal.
"Every day the squad is getting better. The players that were here are mixing with the new ones who have come in and everyone is learning together.
"Of course we still have a lot of things to work on but for now we can have a happy bus trip home."
- 01 Olejnik
- 05 Zakuani
- 19 Little Booked
- 24 Ntlhe
- 06 Bostwick
- 11 McCann Booked (Ferdinand - 46' )
- 17 Newell (Gordon-Hutton - 74' )
- 20 Knight-Percival
- 44 Mendez-Laing
- 08 Tomlin (Boyd - 61' )
- 09 Barnett
- 13 Day
- 03 Alcock
- 04 Brisley
- 18 Ferdinand
- 10 Boyd
- 12 Sinclair
- 28 Gordon-Hutton
- 13 Ikeme
- 11 Ward
- 14 Johnson
- 16 Berra
- 32 Foley (Stearman - 81' )
- 07 Peszko (Boukhari - 60' Booked )
- 08 Henry Booked
- 10 Sako
- 28 Doumbia
- 09 Ebanks-Blake (Sigurdarson - 67' )
- 29 Doyle
- 31 De Vries
- 05 Stearman
- 34 Margreitter
- 04 Edwards
- 12 Hunt
- 17 Boukhari
- 15 Sigurdarson
Live Text Commentary
Full Time The game is over, as the referee blows his whistle.90:00 +1:22
Short corner taken by George Boyd. Long range effort by Kgosi Ntlhe goes wide right of the net.90:00 +1:04
George Boyd takes a shot. Save made by Carl Ikeme.90:00 +0:20
Christophe Berra fouled by Jaanai Gordon-Hutton, the ref awards a free kick. Free kick taken by Carl Ikeme.88:10
George Boyd restarts play with the free kick.88:10 Booking
Booking The referee shows Razak Boukari a yellow card for unsporting behaviour.88:01
Unfair challenge on Kgosi Ntlhe by Razak Boukari results in a free kick.86:28
Outswinging corner taken by George Boyd from the left by-line, Christophe Berra makes a clearance.85:47
Tyrone Barnett takes a shot. Stephen Ward gets a block in.81:14
Assist by Kevin Doyle.81:14 Goal scored
Goal! - Bjorn Sigurdarson - Peterboro 0 - 2 Wolves Goal scored by Bjorn Sigurdarson from just inside the area to the bottom right corner of the goal. Peterborough 0-2 Wolverhampton.80:29 Substitution
Substitution Richard Stearman comes on in place of Kevin Foley.80:06
Effort from outside the area by George Boyd goes wide right of the goal.78:13
Jaanai Gordon-Hutton produces a cross.76:41
Shot from just outside the area by Bakary Sako misses to the left of the target.75:56
The referee blows for offside. Free kick taken by Robert Olejnik.75:06
Gabriel Zakuani challenges Karl Henry unfairly and gives away a free kick. The free kick is swung in left-footed by Bakary Sako.73:27
Free kick taken by Carl Ikeme.73:27 Substitution
Substitution Jaanai Gordon-Hutton replaces Joe Newell.73:27
The assistant referee flags for offside against Tyrone Barnett.
The ball is delivered by Razak Boukari, clearance made by Gabriel Zakuani.71:46
Bakary Sako takes a outswinging corner from the left by-line played to the near post, clearance made by Michael Bostwick.68:09
Short corner taken by George Boyd from the left by-line.67:55
A cross is delivered by Kgosi Ntlhe, Stephen Ward makes a clearance.66:31
Bjorn Sigurdarson produces a left-footed shot from deep inside the penalty box which goes wide of the left-hand post.66:01 Substitution
Substitution Bjorn Sigurdarson replaces Sylvan Ebanks-Blake.65:34
Razak Boukari takes a shot. Gabriel Zakuani gets a block in.63:43
Centre by Stephen Ward, clearance made by Nathaniel Knight-Percival.63:03
Karl Henry fouled by Michael Bostwick, the ref awards a free kick. Tongo Doumbia restarts play with the free kick.62:05
The ball is delivered by Bakary Sako, save by Robert Olejnik.61:32
Inswinging corner taken by Bakary Sako from the right by-line played to the near post, Kane Ferdinand makes a clearance.61:25
Centre by Kevin Foley, Kgosi Ntlhe gets a block in.60:22 Substitution
Substitution George Boyd replaces Lee Tomlin.58:47 Substitution
Substitution Razak Boukari is brought on as a substitute for Slawomir Peszko.58:47 Booking
Booking Karl Henry receives a caution for unsporting behaviour.58:34
Joe Newell fouled by Karl Henry, the ref awards a free kick. Lee Tomlin restarts play with the free kick.55:12
Tongo Doumbia is flagged offside by the assistant referee. Indirect free kick taken by Robert Olejnik.54:54
The ball is swung over by Slawomir Peszko, comfortable save by Robert Olejnik.53:36
Tongo Doumbia fouled by Michael Bostwick, the ref awards a free kick. Stephen Ward takes the indirect free kick.52:34
Corner taken by Lee Tomlin from the right by-line, Roger Johnson makes a clearance.52:05
Tyrone Barnett takes a shot. Comfortable save by Carl Ikeme.51:47
Centre by Stephen Ward, clearance made by Kgosi Ntlhe.51:35
Free kick awarded for a foul by Michael Bostwick on Kevin Doyle. Karl Henry restarts play with the free kick.50:18
Bakary Sako has an effort at goal from just outside the area which goes wide of the left-hand post.49:27
Bakary Sako produces a left-footed shot from just outside the penalty box that goes wide left of the target.49:03
Corner taken by Bakary Sako played to the near post, Nathaniel Knight-Percival manages to make a clearance.48:37
A cross is delivered by Slawomir Peszko, Gabriel Zakuani makes a clearance.47:53
Kane Ferdinand challenges Tongo Doumbia unfairly and gives away a free kick. Indirect free kick taken by Roger Johnson.46:47
Tyrone Barnett gives away a free kick for an unfair challenge on Tongo Doumbia. Tongo Doumbia takes the indirect free kick.45:42
Lee Tomlin concedes a free kick for a foul on Tongo Doumbia. Roger Johnson takes the indirect free kick.45:01
The referee starts the second half.45:01 Substitution
Substitution Kane Ferdinand comes on in place of Grant McCann.45:00 +1:59 Half time
Half Time The ref blows to end the first period.45:00 +1:25
Sylvan Ebanks-Blake takes a shot. Robert Olejnik makes a comfortable save.45:00 +0:51
Free kick taken by Bakary Sako.45:00 +0:51 Booking
Booking Mark Little receives a caution.45:00 +0:44
Free kick awarded for a foul by Grant McCann on Tongo Doumbia.44:44
Sylvan Ebanks-Blake crosses the ball.42:43
Stephen Ward crosses the ball, save by Robert Olejnik.41:25
Bakary Sako takes a shot. Comfortable save by Robert Olejnik.40:17
Lee Tomlin takes a shot. Carl Ikeme makes a comfortable save.39:29
Slawomir Peszko takes a shot.37:50
Kevin Doyle takes a shot. Michael Bostwick gets a block in. Kevin Doyle takes a shot. Save made by Robert Olejnik. Corner taken by Bakary Sako played to the near post, Tyrone Barnett manages to make a clearance.36:33
Karl Henry fouled by Tyrone Barnett, the ref awards a free kick. Free kick taken by Karl Henry.35:17
Shot from just outside the box by Kevin Doyle misses to the left of the goal.34:34
Kevin Doyle concedes a free kick for a foul on Nathaniel Knight-Percival. Free kick taken by Grant McCann.34:10
Free kick awarded for a foul by Tyrone Barnett on Christophe Berra. Stephen Ward takes the indirect free kick.33:29
Tyrone Barnett takes a shot. Save made by Carl Ikeme.32:13 Goal scored
Goal! - Sylvan Ebanks-Blake - Peterboro 0 - 1 Wolves Power penalty scored by Sylvan Ebanks-Blake. Peterborough 0-1 Wolverhampton.31:12 Booking
Booking Grant McCann shown a yellow card.31:07
Penalty awarded for a foul by Grant McCann on Sylvan Ebanks-Blake.30:41
Nathaniel Mendez-Laing takes a shot. Blocked by Roger Johnson.30:01
The ball is crossed by Mark Little, Headed effort from inside the area by Tyrone Barnett misses to the left of the target.27:57
Sylvan Ebanks-Blake takes a shot. Robert Olejnik makes a comfortable save.27:20
Effort from outside the area by Tongo Doumbia goes wide right of the goal.26:15
Bakary Sako sends in a cross.25:24
Corner taken right-footed by Lee Tomlin from the left by-line to the near post, Kevin Doyle makes a clearance.25:04
Nathaniel Mendez-Laing sends in a cross, Roger Johnson manages to make a clearance.24:24
Karl Henry takes a shot. Robert Olejnik makes a comfortable save.23:51
Slawomir Peszko crosses the ball.22:09
Slawomir Peszko concedes a free kick for a foul on Lee Tomlin. Free kick taken by Lee Tomlin.21:46
The ball is sent over by Sylvan Ebanks-Blake, save made by Robert Olejnik.18:10
Corner taken short by Bakary Sako.15:23
Free kick awarded for an unfair challenge on Tongo Doumbia by Mark Little. The free kick is delivered left-footed by Bakary Sako from left wing.14:12
Bakary Sako sends in a cross, clearance made by Nathaniel Knight-Percival.13:13
Free kick awarded for an unfair challenge on Lee Tomlin by Bakary Sako. Robert Olejnik takes the free kick.12:33
Inswinging corner taken right-footed by Bakary Sako, clearance by Tyrone Barnett.12:10
Kevin Doyle produces a cross, Gabriel Zakuani makes a clearance.8:26
Grant McCann takes a shot. Save made by Carl Ikeme.7:46
Centre by Bakary Sako.6:40
Slawomir Peszko challenges Joe Newell unfairly and gives away a free kick. Grant McCann takes the free kick.5:35
Bakary Sako takes a outswinging corner from the left by-line played to the near post, Tyrone Barnett makes a clearance.5:03
Bakary Sako takes a shot. Gabriel Zakuani gets a block in.4:14
Foul by Kevin Doyle on Nathaniel Knight-Percival, free kick awarded. Indirect free kick taken by Robert Olejnik.3:37
Shot from just outside the box by Lee Tomlin misses to the left of the target.1:17
Free kick awarded for an unfair challenge on Joe Newell by Slawomir Peszko. Free kick taken by Nathaniel Knight-Percival.0:00
The referee gets the match started.
Live data and text provided by our data suppliers