Blair2004 NexoPOS up to 6.3.0 CashRegistersService privileges management

Summaryinfo

A vulnerability was found in Blair2004 NexoPOS up to 6.3.0. It has been rated as problematic. The impacted element is an unknown function of the component CashRegistersService. Performing a manipulation results in privileges management. This vulnerability is known as CVE-2026-117606. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Blair2004 NexoPOS up to 6.3.0. This affects an unknown function of the component CashRegistersService. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-117606 since 10/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/28/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Blair2004

Name

• NexoPOS

Version

• 6.0
• 6.1
• 6.2
• 6.3.0

Website

• Product: https://github.com/Blair2004/NexoPOS/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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