CVE-2020-28724: Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL

Medium severity · published Nov 18, 2020

CVE-2020-28724

Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL

6.1

CVSS

1.7%

EPSS

On KEV

Description

Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

Low

Integrity

Low

Availability

None

Scope

Changed

Exploitation

Is it being used?

Exploit prediction (EPSS)1.7% · higher than 77% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Werkzeug · Palletsprojects

before 0.11.6 · source: NVD

Affected product

Werkzeug

Palletsprojects

All Werkzeug CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-28724

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-28724

Exploit

https://github.com/pallets/flask/issues/1639

Issue Tracking

https://github.com/pallets/werkzeug/issues/822

Patch

https://github.com/pallets/werkzeug/pull/890/files