Description
NexoPOS through 6.2.4 contains a missing authentication vulnerability that allows unauthenticated attackers to read accounting transaction records via GET /api/fields/{resource}/{identifier}. Attackers can request transaction field classes like ns.entity-transaction with sequential ids to retrieve names, values, account ids, and descriptions without nexopos.read.transactions permission.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Blair2004 | NexoPOS | ≤ 6.2.4 | — |
References
- https://hackmd.io/@hieuPenguinnn/nexopos-fields-endpoint-unauthenticated-transaction-disclosure third-party-advisory
- https://github.com/Blair2004/NexoPOS/blob/v6.2.4/routes/api-base.php#L10-L18 technical-description
- https://github.com/Blair2004/NexoPOS/blob/v6.2.4/app/Providers/FormsProvider.php#L126-L152 technical-description
- VulnCheck Advisory: NexoPOS through 6.2.4 Unauthenticated Transaction Disclosure via /api/fields Endpoint third-party-advisory