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.
References
| Link | Resource |
|---|---|
| https://github.com/lingthio/Flask-User | Product Third Party Advisory |
| https://github.com/lingthio/Flask-User/blob/master/flask_user/user_manager__utils.py | Exploit Third Party Advisory |
| https://snyk.io/vuln/SNYK-PYTHON-FLASKUSER-1293188 | Third Party Advisory |
Configurations
History
08 Jul 2021, 18:08
| Type | Values Removed | Values Added |
|---|---|---|
| References | (MISC) https://github.com/lingthio/Flask-User/blob/master/flask_user/user_manager__utils.py - Exploit, Third Party Advisory | |
| References | (MISC) https://github.com/lingthio/Flask-User - Product, Third Party Advisory | |
| References | (MISC) https://snyk.io/vuln/SNYK-PYTHON-FLASKUSER-1293188 - Third Party Advisory | |
| CWE | CWE-601 | |
| CPE | cpe:2.3:a:flask-user_project:flask-user:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : 5.8
v3 : 6.1 |
05 Jul 2021, 11:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-07-05 11:15
Updated : 2024-02-04 21:47
NVD link : CVE-2021-23401
Mitre link : CVE-2021-23401
CVE.ORG link : CVE-2021-23401
JSON object : View
Products Affected
flask-user_project
- flask-user
CWE
CWE-601
URL Redirection to Untrusted Site ('Open Redirect')