CVE-2020-28724 Open Redirect in werkzeug
An attacker can redirect users to malicious sites via a double slash in the URL, affecting applications using the Werkzeug library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-28724?
CVE-2020-28724 is a medium-severity vulnerability in n/a, published on 18 Nov 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.
Weakness: CWE-601
Which versions are affected by CVE-2020-28724?
3 open source packages ship an affected version, including werkzeug. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
werkzeug PyPI | All versions | 0.11.6 |
werkzeug PyPI | All versions | 0.11.6 |
werkzeug PyPI | All versions | 0.11.6 |
Products include Palletsprojects Werkzeug.
How do I fix CVE-2020-28724?
Upgrade werkzeug to 0.11.6 or later.
Is CVE-2020-28724 being exploited?
There is no known exploitation of CVE-2020-28724 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2022-29361 Other in n/a
- CVE-2023-46136 Werkzeug DoS: High resource usage when parsing multipart/form-data containing a large part with CR/LF character at the beginning
- CVE-2023-25577 Werkzeug may allow high resource usage when parsing multipart form data with many fields
- CVE-2019-14322 Pallets Werkzeug vulnerable to Path Traversal
- CVE-2026-27199 Werkzeug safe_join() allows Windows special device names
Sources
Also known as DEBIAN-CVE-2020-28724, GHSA-3p3h-qghp-hvh2, PYSEC-2020-157, UBUNTU-CVE-2020-28724.