In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb does not check whether an issue is visible, which allows remote authenticated users to obtain sensitive information by reading e-mail reminder messages.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-16804.json"