CVE-2026-117606: medium-severity vulnerability in Blair2004 NexoPOS
NexoPOS through 6.3.0 Missing Authorization via Cash Register Session Actions
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.3%
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.
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
Affected products
Blair2004 · NexoPOSpublic PoCs found — 1
cve_referencehackmd.io/@hieuPenguinnn/nexopos-cash-register-cross-cashier-session-takeoverunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Blair2004 NexoPOS
In the same product, most dangerous first.
References
https://github.com/Blair2004/NexoPOShttps://github.com/Blair2004/NexoPOS/blob/1e9b2e272026e176cba354534678a111b1832ce6/app/Services/CashRegistersService.php#L53-L92https://github.com/Blair2004/NexoPOS/issues/2668https://github.com/Blair2004/NexoPOS/pull/2673https://hackmd.io/@hieuPenguinnn/nexopos-cash-register-cross-cashier-session-takeoverhttps://www.vulncheck.com/advisories/nexopos-through-6.3.0-missing-authorization-via-cash-register-session-actions