---
id: CVE-2026-117606
title: NexoPOS through 6.3.0 Missing Authorization via Cash Register Session Actions
summary: >-
  NexoPOS through 6.3.0 contains a missing authorization vulnerability that
  allows authenticated cashiers to manipulate other cashiers' register sessions
  because CashRegistersService never compares used_by with the user. Attackers
  holding …
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-639
vendor: Blair2004
product: NexoPOS
affected:
  - NexoPOS <= 6.3.0
published: '2026-10-28'
updated: '2026-10-28'
sourceUpdated: '2026-10-28T02:03:15.947Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-117606'
references:
  - url: 'https://github.com/Blair2004/NexoPOS/issues/2668'
  - url: 'https://github.com/Blair2004/NexoPOS/pull/2673'
  - url: >-
      https://github.com/Blair2004/NexoPOS/blob/1e9b2e272026e176cba354534678a111b1832ce6/app/Services/CashRegistersService.php#L53-L92
  - url: 'https://github.com/Blair2004/NexoPOS'
  - url: >-
      https://www.vulncheck.com/advisories/nexopos-through-6.3.0-missing-authorization-via-cash-register-session-actions
    label: >-
      VulnCheck Advisory: NexoPOS through 6.3.0 Missing Authorization via Cash
      Register Session Actions
tags:
  - cve.org
ingestedAt: '2026-10-28T03:02:57.630Z'
---

## Overview

NexoPOS through 6.3.0 contains a missing authorization vulnerability that allows authenticated cashiers to manipulate other cashiers' register sessions because CashRegistersService never compares used_by with the user. Attackers holding the default nexopos.use.registers permission can submit closing, cash-in, or cash-out actions to POST /api/cash-registers/{action}/{register} to force-close sessions or alter balances.

## Affected

- `NexoPOS <= 6.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.