HexBrain

Nextcloud · Report #664200

SignUp using Fake Email

Informativestatus
4upvotes
2 Aug 2019disclosed

How it was found

In this trial I used the email '[email protected]' and after pressing the SIGN UP button it will automatically redirect to https://ppp.woelkli.com/apps/preferred_providers/password/set/emailfakeforregister/H2qlEWHxQ3yiJgCsEXkR8, not through the account verification process first.

For full the link PoC can see on the link this: https://drive.google.com/file/d/1VX5MBh7WR__Zj2lIup4TtS81VawPy0F7/view?usp=drivesdk

Thank you.

Impact

This will enable someone to create multiple accounts at once without verification.

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