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  • #33563
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Issue created Oct 07, 2019 by GitLab SecurityBot@gitlab-securitybotReporter

View the Starred Projects in a Private Profile

HackerOne report #703894 by maruthi12 on 2019-09-29, assigned to @cmaxim:

Summary

It is possible to view the starred Projects in a private profile. Consider my profile for instance, https://gitlab.com/maruthi-adithya . This is a private profile and none of my account-related information should be leaked. However, https://gitlab.com/users/maruthi-adithya/starred.json exposes Starred Projects.

Steps to reproduce

  1. Login to Gitlab. Go to Settings.
  2. Check "Don't display activity-related personal information on your profiles".
  3. Save the Profile.
  4. Now, open your profile from a private window. It will say this is a private profile. However, the above mentioned API exposes the starred projects information.

Impact

According to the docs, https://gitlab.com/help/user/profile/index.md#private-profile, starred projects should be hidden. However, due to this API, it is getting exposed. Using this, an attacker could steal sensitive data from a private profile.

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