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Published: 12 April 2016

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 "," a different vulnerability than CVE-2014-1985.



Cvss 3 Severity Score


Score breakdown


Package Release Status
Launchpad, Ubuntu, Debian
artful Not vulnerable
bionic Not vulnerable
cosmic Not vulnerable
disco Not vulnerable
precise Ignored
(end of life)
trusty Does not exist
(trusty was needed)
Released (2.6.7, 3.0.5 and 3.1.1)
vivid Ignored
(end of life)
wily Ignored
(end of life)
xenial Not vulnerable
yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 7.4
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N