Vulnerability identifier: #VU72340

Vulnerability risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23934

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Werkzeug
Web applications / JS libraries

Vendor: The Pallets Projects

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of "nameless" cookies. A remote attacker can manipulate cookie values for an arbitrary domain.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Werkzeug: 0.1 - 2.2.2

---

External links
http://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q
http://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028
http://github.com/pallets/werkzeug/releases/tag/2.2.3

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.