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TI-2026-75423 Aliases CVE-2026-111637GHSA-222q-33hf-4cp6

Missing authentication in NexoPOS exposes transaction records

Priority HIGH 70CWE-306Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

NexoPOS through 6.2.4 is affected. A missing authentication check on the /api/fields endpoint lets an unauthenticated remote attacker read accounting transaction records, including names, values, account ids and descriptions (CWE-306). No privileges or user interaction are needed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

NexoPOS through 6.2.4 contains a missing authentication vulnerability that allows unauthenticated attackers to read accounting transaction records via GET /api/fields/{resource}/{identifier}. Attackers can request transaction field classes like ns.entity-transaction with sequential ids to retrieve names, values, account ids, and descriptions without nexopos.read.transactions permission.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00465 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Blair2004NexoPOSup to 6.2.4—No fix listedCNA
  • NexoPOS VendorBlair2004 Affected up to 6.2.4 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for NexoPOS.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111637
  2. 2026-10-16 Alias added: GHSA-222q-33hf-4cp6
  3. 2026-10-18 CISA SSVC decision points changed
  4. 2026-10-18 Priority changed: MEDIUM → HIGH

References

Advisory 1

Other 2

  • TI-2026-81651 Missing authorization in NexoPOS cash register session actions CVSS 4.0MEDIUM 5.3

Sources

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