DEBIAN-CVE-2021-23385

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Source
https://security-tracker.debian.org/tracker/CVE-2021-23385
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-23385.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-23385
Upstream
Published
2022-08-02T14:15:10Z
Modified
2025-09-19T07:31:27.016338Z
Summary
[none]
Details

This affects all versions of package Flask-Security. When using the getpostlogoutredirect and getpostloginredirect functions, 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. Note: Flask-Security is not maintained anymore.

References

Affected packages

Debian:11 / flask-security

Package

Name
flask-security
Purl
pkg:deb/debian/flask-security?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.0.0-1+deb11u1

Affected versions

4.*

4.0.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / flask-security

Package

Name
flask-security
Purl
pkg:deb/debian/flask-security?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / flask-security

Package

Name
flask-security
Purl
pkg:deb/debian/flask-security?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / flask-security

Package

Name
flask-security
Purl
pkg:deb/debian/flask-security?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}