CVE-2026-117606
NexoPOS through 6.3.0 Missing Authorization via Cash Register Session Actions
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 28, 2026
- Updated
- Oct 28, 2026
- Reserved
- Oct 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
NexoPOSBlair2004 |
|
References
- https://github.com/Blair2004/NexoPOS/issues/2668issue-tracking
- https://github.com/Blair2004/NexoPOS/pull/2673patchissue-tracking
- https://github.com/Blair2004/NexoPOS/blob/1e9b2e272026e176cba354534678a111b1832ce6/app/Services/CashRegistersService.php#L53-L92technical-description
- https://github.com/Blair2004/NexoPOSproduct
- VulnCheck Advisory: NexoPOS through 6.3.0 Missing Authorization via Cash Register Session Actionsthird-party-advisory
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