HexBrain

Starbucks · Report #883151

Singapore - Unrestricted File Upload Leads to XSS on campaign.starbucks.com.sg/api/upload

Validstatus
mediumseverity
61upvotes
22 Jul 2020disclosed

Summary

ko2sec discovered it was possible to upload arbitrary content on https://campaign.starbucks.com.sg/api/upload, leading to a stored XSS. This site was decommissioned.

@ko2sec — thank you for reporting this vulnerability and for confirming the resolution.

How it was found

The write-up for this report has not been downloaded yet, or the program disclosed it without one. Read it on HackerOne.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original