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flask-unchained

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Medium, CVSS 5.3PyPIAmendedPublished

    Open redirect in Flask-Unchained

    CVE-2021-23393 · GHSA-pjc4-3w99-j7v4

    Affected
    • PyPI flask-unchained < 0.9.0
    Fixed in
    0.9.0· Vendor fix available
    Issue
    This affects the package Flask-Unchained before 0.9.0. When using the the validateredirecturl 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. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrectlocationheader=False.

    Recommended action: Upgrade to 0.9.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →