
The 32-year-old top seed dropped the opening game but recovered to win 9-11 13-11 11-6 11-3 in 46 minutes.
Massaro (below) – who became world No.1 in January – is trying to win her second world title following her 2013 victory.
She will play Joshna Chinappa of India in the second round.
Home favourite Nicol David, trying to win a ninth world title, is the second seed in Kuala Lumpur.