Open redirect vulnerability in the redirect_back_or_default function in app/controllers/application_controller.rb in Redmine before 2.4.5 and 2.5.x before 2.5.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the back url (back_url parameter).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade redmine | Jul 30, 2024 | Apr 11, 2014 |
| Freebsd | — | Upgrade redmine | Dec 10, 2025 | Dec 10, 2015 |
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