CVE 2016-5715

Open redirect vulnerability in the Console in Puppet Enterprise 2015.x and 2016.x before 2016.4.0 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a // (slash slash) followed by a domain in the redirect parameter. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6501.

See the CVE page on Mitre.org for more details.