Seems it has already been reported.
Reply from Amazon:
Thank you for your report!
Unfortunately, this was submitted previously by another researcher, but we appreciate your work and look forward to additional reports from you.
At this time, we cannot add you to the original report as the report may contain additional information that we cannot share with you. This may include personal information or additional vulnerability information that shouldn't be exposed to other users. Thank you for your understanding.
Have a great day ahead!