An issue has been discovered in GitLab affecting all versions starting from 4.1 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1 where it was possible to create a URL that would redirect to a different project.
Solution:
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
Link | Tags |
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https://gitlab.com/gitlab-org/gitlab/-/issues/395437 | issue tracking broken link |
https://hackerone.com/reports/1889230 | broken link exploit permissions required technical description |