1 Zsuzsanna Voros (Hun) 5448
2 Jelena Rublevska (Lat) 5380
3 Georgina Harland (Gbr) 5344
8 Kate Allenby (Gbr) 5236
Georgina Harland begins the 3km run 49 seconds behind the third-placed athlete but digs deep to make up the difference and snatch a bronze medal.
Zsuzsanna Voros, who had a 41-second advantage at the start of the run, takes gold for Hungary ahead of Jelena Rublevska of Latvia.
Britain's Kate Allenby, who was seventh after the show jumping, can make no inroads and slips back to eighth overall.
Allenby's hopes of gold look to be dashed by a poor round that gives her only 1004 event ranking points.
The Briton incurred 196 penalty points, more than any of her major rivals bar China's Lean Dong who fell.
While Allenby drifts off the pace, Harland picks it up knocking down only two fences on the 12-obstacle course.
Even though she should pick up even more places on the run - her best discipline - Voros tightens her grip on gold with 1124 event points.
The shambles of the shooting seems a distant memory as Harland and Allenby finish in the top five.
Allenby takes the plaudits with a personal best time of 2:17.41 and her haul of 1272 points sees her climb into the silver medal position.
Amelie Caze sets the fastest time of 2:14.44 to win 1308 points, the same total as Harland who was edged out by the Frenchwoman on the line.
Harland moves to 19th overall and Voros stays in the lead.
Allenby and Harland both make progress up the rankings in the second event with top-15 finishes.
The 32-strong field fight each other once and Allenby finishes joint second with 972 points after 21 wins. She moves to equal sixth overall.
Harland enjoys 16 victories to claim 835 points and rises from 30th to 26th.
Latvia's Jelena Rublevska comes first, ahead of Allenby and Italy's Claudia Corsini, with 1028 points from 23 wins. Voros moves into first place overall.
The British duo start badly in the opening discipline.
They each record 35 points with their first rotation of five shots, and while Allenby improves, Harland struggles.
Allenby eventually finishes with a total of 169 points from her 20 shots to move up the rankings to 18th. Harland scores 156 and is 30th equal.
China's Lean Dong sets the pace with 189 points from a possible 200. Tatsiana Mazurkevich of Belarus is second with 184 and Voros third on 182.