CVE-2026-111637: Missing Authentication for Critical Function in Blair2004 NexoPOS
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.
CVSS v4.0
Score 6.9medium
Affected software
Blair2004
NexoPOS
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111637 describes a missing authentication vulnerability in Blair2004's NexoPOS product through version 6.2.4. The flaw allows unauthenticated attackers to issue GET requests to the /api/fields/{resource}/{identifier} endpoint, specifically targeting transaction field classes like ns.entity-transaction with sequential IDs. This enables attackers to read sensitive accounting transaction data without requiring the nexopos.read.transactions permission.
Potential Impact
The vulnerability allows unauthorized disclosure of accounting transaction records, potentially exposing sensitive financial information such as transaction names, values, account identifiers, and descriptions. This could lead to information leakage and privacy violations but does not indicate direct modification or disruption of data.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the vulnerable API endpoint where possible and monitor for unauthorized access attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-16T14:31:13.064Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad2640f2cdf04f656199569
Added to database: 10/16/2026, 17:51:11 UTC
Last enriched: 10/16/2026, 18:49:06 UTC
Last updated: 10/16/2026, 19:34:26 UTC
Views: 2
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