GHSA-4298-89hc-6rfv

    Dashboard / Vulnerabilities / GHSA-4298-89hc-6rfv

    GHSA-4298-89hc-6rfv

    Published: 9 Aug 2021Last Modified: 20 Sept 2024

    Summary: Open Redirect in Flask-User

    Details: 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 backslashes 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: https://nvd.nist.gov/vuln/detail/CVE-2021-23401, https://github.com/advisories/GHSA-4298-89hc-6rfv, https://github.com/lingthio/Flask-User, https://github.com/lingthio/Flask-User/blob/master/flask_user/user_manager__utils.py, https://github.com/pypa/advisory-database/tree/main/vulns/flask-user/PYSEC-2021-337.yaml, https://snyk.io/vuln/SNYK-PYTHON-FLASKUSER-1293188

    Affected packages

    Package

    Name: flask-user

    Purl: pkg:pypi/flask-user

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.3
    0.3.1
    0.3.2
    0.3.3
    0.3.4
    0.3.5
    0.3.6
    0.3.7
    0.3.8

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-4298-89hc-6rfv | CVE-DB