Open Redirect Affecting flask-user package, versions [0,]
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Test your applications- Snyk ID SNYK-PYTHON-FLASKUSER-1293188
- published 30 Jun 2021
- disclosed 11 Jun 2021
- credit Noam Moshe of Claroty
Introduced: 11 Jun 2021
CVE-2021-23401 Open this link in a new tabHow 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`.