TI-2023-11958 Aliases CVE-2023-27172 GHSA-hvrj-r9f4-xr39

Xpand IT Write-back Manager v2.3.1 uses weak secret keys to sign JWT tokens.

MEDIUM 48CWE-307Published 2023-12-20 · Updated 2026-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-307.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00687 52nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:xpand-it:write-back_manager:2.3.1:::::::*	2.3.1	Vulnerable	Xpand-it

cpe:2.3:a:xpand-it:write-back_manager:2.3.1:*:*:*:*:*:*:* Versions 2.3.1 Vulnerable ·Xpand-it

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-27172
2026-10-03 Alias added: GHSA-hvrj-r9f4-xr39

References

Exploit 1

https://balwurk.github.io/CVE-2023-27172/

Other 1

https://ghostline.neocities.org/CVE-2023-27172/

TI-2023-11955 An arbitrary file upload vulnerability in Xpand IT Write-back Manager v2.3.1 allows… CVSS 3.1CRITICAL 9.8
TI-2023-11957 Xpand IT Write-back manager v2.3.1 allows attackers to perform a directory traversal via… CVSS 3.1HIGH 7.5
TI-2023-11956 Xpand IT Write-back manager v2.3.1 uses a hardcoded salt in license class configuration… CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences