Has a FIBA World Cup game ever ended 48-45?
Exactly once. On October 31, 1954, Israel beat France 48-45, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 48-45 in league history.
That makes 48-45 the 240th most common final score out of 863 that have ever occurred in FIBA World Cup. One point away, 49-45 has happened 1 times and 48-46 has happened never.