West Ham slumped into the Premier League bottom three following defeat at fellow strugglers Wolves.
Both sides went into the Molineux meeting out of form in the league but it was the hosts who sealed a 1-0 victory courtesy of a smart Daniel Podence strike which lifts them out of the relegation zone.
West Ham headed to the Black Country having won just one of their last nine Premier League games, taking a single point from their previous six.
It left the Hammers looking over their shoulder and into the drop zone, where their hosts sat following an equalling galling run of results.