CVE-2023-27172

Name: CVE-2023-27172
Creator: NVD / NIST
Published: 2023-12-20T01:15:07.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2023-27172 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Xpand IT Write-back Manager v2.3.1 uses weak secret keys to sign JWT tokens. This allows attackers to easily obtain the secret key used to sign JWT tokens via a bruteforce attack.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

Xpand IT Write-back Manager v2.3.1 uses weak secret keys to sign JWT tokens. This allows attackers to easily obtain the secret key used to sign JWT tokens via a bruteforce attack.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.67%

47.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Xpand-It	Write-Back Manager	2.3.1

References

https://balwurk.github.io/CVE-2023-27172/Exploit, Third Party Advisory
https://balwurk.github.io/CVE-2023-27172/Exploit, Third Party Advisory

Timeline

Published: Dec 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27172?

Xpand IT Write-back Manager v2.3.1 uses weak secret keys to sign JWT tokens. This allows attackers to easily obtain the secret key used to sign JWT tokens via a bruteforce attack.

How severe is CVE-2023-27172?

CVE-2023-27172 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27172?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-27172?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST