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Servers and applications

CVE-2015-8474

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.

Severity
High 7.4
Published
12 Apr 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.9% in the next 30 daysHigher than 79% of CVEs. EPSS by FIRST, 11 Nov 2026
Attack
Over the network · No login needed · Needs someone to click or open something
Attacker can
Change data
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Sources
NVD

Affected software

SoftwareAffected versions
RedmineServers and applications · cpe:a:redmine:redmine
  • Version 3.1.0
  • Version 3.0.4
  • Version 3.0.3
  • Version 3.0.2
All 8 release lines
  • Every version up to 2.6.6
  • Version 2.5.1
  • Version 3.0.0
  • Version 3.0.1
  • Version 3.0.2
  • Version 3.0.3
  • Version 3.0.4
  • Version 3.1.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8474
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8474