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CVE-2026-117606— NexoPOS through 6.3.0 Missing Authorization via Cash Register Session Actions

Quick assessment

Affected
Blair2004 NexoPOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NexoPOS 6.3.0 及更早版本存在一个缺少授权验证的漏洞，允许已认证的收银员篡改其他收银员的收银台会话。该漏洞的根源在于 从未将 字段与当前用户进行比对。拥有默认权限 的攻击者可以向 接口提交“关闭收银台”、“现金存入”或“现金取出”等操作，从而强制关闭会话或篡改余额。

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-117606

Vulnerability Information
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Vulnerability Title
NexoPOS through 6.3.0 Missing Authorization via Cash Register Session Actions
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Blair2004 NexoPOS 0 ~ 6.3.0 -

II. Public POCs for CVE-2026-117606

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III. Intelligence Information for CVE-2026-117606

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Patches & Fixes for CVE-2026-117606 (1)

Vendor Advisories for CVE-2026-117606 (1)

Proof of Concept for CVE-2026-117606 (1)

Vendor Pages for CVE-2026-117606 (2)

IV. Related Vulnerabilities

Same product: NexoPOS
Same vendor: Blair2004
Same weakness: CWE-639