What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-28 · updated 2026-10-28
• Weakness: CWE-639

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.

Affected products

• Blair2004 NexoPOS: through 6.3.0

References

• https://github.com/Blair2004/NexoPOS
• https://github.com/Blair2004/NexoPOS/blob/1e9b2e272026e176cba354534678a111b1832ce6/app/Services/CashRegistersService.php#L53-L92
• https://github.com/Blair2004/NexoPOS/issues/2668
• https://github.com/Blair2004/NexoPOS/pull/2673
• https://www.vulncheck.com/advisories/nexopos-through-6.3.0-missing-authorization-via-cash-register-session-actions

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