Technically yes, only if WeeWorld was actively monitoring your account and item purchases to ensure you legitimately bought every item that you are wearing. Realistically, no, it is not detectable, as WeeWorld cannot monitor every user for this type of behavior. Also, they have no way of knowing if you performed the glitch on purpose.

The only time you might be at risk is if someone reports you for it and has sufficient evidence to back up their accusation. Other than that, it's safe.