Has a FIBA World Cup game ever ended 48-43?
Exactly once. On October 24, 1950, France beat Ecuador 48-43, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 48-43 in league history.
That makes 48-43 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 49-43 has happened never and 48-44 has happened 1 times.