Flask User Project

flask-user_project

1 CVE • 1 product

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Flask User

flask-user

1 CVE

CVEs (1)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2021-23401 1Flask User Project 1Flask User Jun 17, 2026 Jul 5, 2021 N/A· v4 6.1 MEDIUM· v3 5.8 MEDIUM· v2 This affects all versions of package Flask-User. 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...Show more This affects all versions of package Flask-User. 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.Show less

CVE

VENDORS

PRODUCTS

UPDATED

PUBLISHED

CVSS

CVE-2021-23401

1Flask User Project

1Flask User

Jun 17, 2026

Jul 5, 2021

N/A· v4

6.1 MEDIUM· v3

5.8 MEDIUM· v2

This affects all versions of package Flask-User. 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.Show less