CVE-2020-28724

Publication date 18 November 2020

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

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

Status

Show unmaintained releases

Package	Ubuntu Release	Status
python-werkzeug	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Fixed 0.10.4+dfsg1-1ubuntu1.2
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
python-werkzeug	Upstream: https://github.com/pallets/werkzeug/pull/890 Upstream: 556bdcb

Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-4655-1
Werkzeug vulnerabilities
1 December 2020

Other references

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