Open Redirect Affecting flask-user Open this link in a new tab package, versions [0,]


0.0
medium
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • User Interaction

    Required

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • snyk-id

    SNYK-PYTHON-FLASKUSER-1293188

  • published

    30 Jun 2021

  • disclosed

    11 Jun 2021

  • credit

    Noam Moshe of Claroty

How to fix?

There is no fixed version for Flask-User.

Overview

Flask-User is a Customizable User Authorization & User Management: Register, Confirm, Login, Change username/password, Forgot password and more.

Affected versions of this package are vulnerable to Open Redirect. When using the make_safe_url function, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as /////evil.com/path or \\\evil.com/path.

This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False`.