pypi package report

Is flask-unchained safe?

1 known vulnerability, worst severity MODERATE.

// reach

0 direct dependencies

none carry a known advisory

    0 packages depend on it

    an advisory here reaches each of them

      Create a free accountfor every dependency path, dependent and what to upgrade
      // ai model usage

      No published models are known to use this package.

      cvss
      0.0
      medium

      severity out of 10

      epss
      0.00%
      medium

      chance of exploitation in 30 days, 53rd percentile of all CVEs

      xyz score
      not scored

      CyberXYZ composite out of 10

      fig. 01 — GHSA-pjc4-3w99-j7v4, the advisory selected below

      // 1 advisories

      GHSA-pjc4-3w99-j7v4

      MODERATECVE-2021-23393

      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.

      // cvss v3.1 vector

      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

      Attack vector
      Network
      Attack complexity
      Low
      Privileges required
      None
      User interaction
      Required
      Scope
      Unchanged
      Confidentiality
      Low
      Integrity
      Low
      Availability
      None

      Checked 2026-10-23 at 18:48 UTC. The most recent advisory here was published 2021-06-15. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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