Two pay administrators at a Lower Hutt school were reportedly able to access and alter their own timesheets, the latest flaw in Novopay's trouble pay system.
The glitch follows more than 8000 logged errors in teachers' pay, including overpayments, underpayments and even non-payments, since the $30 million Novopay system was rolled out in August.
Sacred Heart deputy principal Alison Spencer told Fairfax Media she could access her own pay details.
Although she could not change her salary, she was reportedly able to add overtime, as well as change her leave.
The school's executive officer Irene Newrick was also able to access her pay details.