CVE-2026-111637
Received Received - Intake

Authentication Bypass in NexoPOS Exposes Transaction Data

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: VulnCheck

Description
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.

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-16
AI Q&A
2026-10-16
EPSS Evaluated
N/A
NVD
CVE-2026-111637
EUVD
EUVD-2026-103059

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Blair2004 NexoPOS 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

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Executive Summary

NexoPOS through 6.2.4 has a missing authentication vulnerability. Unauthenticated attackers can read accounting transaction records by sending GET requests to /api/fields/{resource}/{identifier}. They can access transaction field classes like ns.entity-transaction using sequential IDs to retrieve sensitive details such as names, values, account IDs, and descriptions without needing the nexopos.read.transactions permission.

Detection Guidance

To detect this vulnerability, monitor HTTP GET requests targeting paths like /api/fields/{resource}/{identifier} with parameters such as resource set to ns.entity-transaction and sequential identifiers. Check server logs for unauthorized access attempts to accounting transaction records.

Impact Analysis

This vulnerability allows attackers to access sensitive accounting data without authorization. Attackers could steal financial records, transaction details, or other confidential information, leading to data breaches, financial loss, or reputational damage for affected organizations using NexoPOS.

Compliance Impact

This vulnerability likely violates compliance requirements such as GDPR and HIPAA, which mandate strict access controls and protection of sensitive data. Unauthorized access to financial or personal data could result in legal penalties, fines, or mandatory breach notifications.

Mitigation Strategies

Immediately update NexoPOS to the latest version beyond 6.2.4. Implement strict access controls to restrict API endpoints to authenticated users only. Review server logs for signs of exploitation and block suspicious IP addresses attempting to access /api/fields endpoints.

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