CVE-2015-8474: Debian Linux

High severity, CVSS 7.4. EPSS: 1.8% chance of exploitation in the next 30 days.

Open redirect vulnerability in the valid_back_url function in app/controllers/application_controller.rb in Redmine before 2.6.7, 3.0.x before 3.0.5, and 3.1.x before 3.1.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a crafted back_url parameter, as demonstrated by "@attacker.com," a different vulnerability than CVE-2014-1985.

Affected products

• Debian Debian Linux: version 7.0 only; version 8.0 only
• Redmine Redmine: up to and including 2.6.6; version 2.5.1 only; version 3.0.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; …

Published 2016-04-12. Last modified 2026-06-17.