Description
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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-0089 | 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. |
Github GHSA |
GHSA-4298-89hc-6rfv | Open Redirect in Flask-User |
References
History
No history.
Status: PUBLISHED
Assigner: snyk
Published:
Updated: 2024-09-16T17:15:15.113Z
Reserved: 2021-01-08T00:00:00.000Z
Link: CVE-2021-23401
No data.
Status : Modified
Published: 2021-07-05T11:15:07.670
Modified: 2024-11-21T05:51:39.050
Link: CVE-2021-23401
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Github GHSA