Callum Robinson's equaliser secured a 2-2 draw for Cardiff in an entertaining clash at Stoke City as the Championship resumed after the World Cup hiatus.
The Potters capped a frenetic start on 18 minutes when Liam Delap converted after Campbell's deflected effort.
But the Bluebirds equalised on 58 minutes through Robinson after Stoke were denied two strong penalty claims.
The point apiece is welcome for both clubs but they both remain in difficulty, with Stoke 18th and Cardiff 19th in the Championship.
Both Stoke and Cardiff were hoping to find a win as the Championship resumed, following an extremely disappointing campaign so far that has seen both clubs sack their manager.