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Package details: pkg:pypi/flask-unchained@0.2.2
purl pkg:pypi/flask-unchained@0.2.2
Next non-vulnerable version 0.9.0
Latest non-vulnerable version 0.9.0
Risk 3.1
Vulnerabilities affecting this package (1)
Vulnerability Summary Fixed by
VCID-3wbt-wcwe-r3b3
Aliases:
CVE-2021-23393
GHSA-pjc4-3w99-j7v4
PYSEC-2021-96
SNYK-PYTHON-FLASKUNCHAINED-1293189
This affects the package Flask-Unchained before 0.9.0. When using the the _validate_redirect_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. 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.
0.9.0
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-06-13T08:30:49.568326+00:00 GHSA Importer Affected by VCID-3wbt-wcwe-r3b3 https://github.com/advisories/GHSA-pjc4-3w99-j7v4 38.6.0
2026-06-12T17:42:52.295026+00:00 GitLab Importer Affected by VCID-3wbt-wcwe-r3b3 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/Flask-Unchained/CVE-2021-23393.yml 38.6.0
2026-06-12T04:11:47.796421+00:00 Pypa Importer Affected by VCID-3wbt-wcwe-r3b3 https://github.com/pypa/advisory-database/blob/main/vulns/flask-unchained/PYSEC-2021-96.yaml 38.6.0
2026-06-11T20:53:15.382496+00:00 PyPI Importer Affected by VCID-3wbt-wcwe-r3b3 https://osv-vulnerabilities.storage.googleapis.com/PyPI/all.zip 38.6.0