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Flask User

flask-user

Vendor: Flask User Project • 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