Redmine before 3.2.6 and 3.3.x before 3.3.3 mishandles the rendering of wiki links, which allows remote attackers to obtain sensitive information.

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.

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.

app/views/timelog/_form.html.erb in Redmine before 2.6.8, 3.0.x before 3.0.6, and 3.1.x before 3.1.2 allows remote attackers to obtain sensitive information about subjects of issues by viewing the time logging form.

Open redirect vulnerability in the redirect_back_or_default function in app/controllers/application_controller.rb in Redmine before 2.4.5 and 2.5.x before 2.5.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the back url (back_url parameter).

git_http_controller.rb in the redmine_git_hosting plugin for Redmine allows remote attackers to execute arbitrary commands via shell metacharacters in (1) the service parameter to info/refs, related to the get_info_refs function or (2) the reqfile argument to the file_exists function.

The Issues API in Redmine before 2.6.8, 3.0.x before 3.0.6, and 3.1.x before 3.1.2 allows remote authenticated users to obtain sensitive information in changeset messages by leveraging permission to read issues with related changesets from other projects.

app/views/journals/index.builder in Redmine before 2.6.9, 3.0.x before 3.0.7, and 3.1.x before 3.1.3 allows remote attackers to obtain sensitive information by viewing an Atom feed.

Unspecified vulnerability in the bazaar repository adapter in Redmine 0.9.x and 1.0.x before 1.0.5 allows remote attackers to execute arbitrary commands via unknown vectors.

Cross-site scripting (XSS) vulnerability in the textile formatter in Redmine before 1.0.5 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Unspecified vulnerability in the bazaar repository adapter in Redmine 1.0.x before 1.0.5 allows remote authenticated users to obtain sensitive information via unknown vectors.

Cross-site scripting (XSS) vulnerability in app/views/layouts/base.rhtml in Redmine 1.0.1 through 1.1.1 allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to projects/hg-helloworld/news/. NOTE: some of these details are obtained from third party information.

Redmine before 1.3.2 does not properly restrict the use of a hash to provide values for a model's attributes, which allows remote attackers to set attributes in the (1) Comment, (2) Document, (3) IssueCategory, (4) MembersController, (5) Message, (6) News, (7) TimeEntry, (8) Version, (9) Wiki, (10) UserPreference, or (11) Board model via a modified URL, related to a "mass assignment" vulnerability, a different vulnerability than CVE-2012-0327.

Cross-site scripting (XSS) vulnerability in Redmine before 1.3.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Redmine before 4.2.11 and 5.0.x before 5.0.6 allows XSS via thumbnails.

Redmine before 4.2.11 and 5.0.x before 5.0.6 allows XSS in the Textile formatter.

Redmine before 4.2.11 and 5.0.x before 5.0.6 allows XSS in a Markdown formatter.

Redmine before 4.1.5 and 4.2.x before 4.2.3 may disclose the names of users on activity views due to an insufficient access filter.

Redmine 4.2.0 and 4.2.1 allow existing user sessions to continue upon enabling two-factor authentication for the user's account, but the intended behavior is for those sessions to be terminated.

Redmine before 4.0.9 and 4.1.x before 4.1.3 allows an attacker to learn the values of internal authentication keys by observing timing differences in string comparison operations within SysController and MailHandlerController.