CVE-2026-73488
MediumCVSS 6.0Summary
Flowise versions before 3.1.3 contain an insecure direct object reference vulnerability in the GET /api/v1/organization/customer-default-source endpoint that allows authenticated attackers to access other customers' payment and profile data by manipulating the customerId parameter. Attackers can enumerate predictable customer IDs to retrieve sensitive information including email addresses, account balances, currency types, and billing configurations without authorization checks.
Risk Assessment
The risk includes privacy and confidentiality breach of customer data, which can lead to identity theft, financial fraud, and compliance violations. Access to payment data can be used for unauthorized transactions.
Recommendation
It is recommended to immediately upgrade Flowise to version 3.1.3 or later. Also implement proper access control and object-level authorization for the customer-default-source endpoint.
Original NVD description (English source)
Flowise versions before 3.1.3 contain an insecure direct object reference vulnerability in the GET /api/v1/organization/customer-default-source endpoint that allows authenticated attackers to access other customers' payment and profile data by manipulating the customerId parameter. Attackers can enumerate predictable customer IDs to retrieve sensitive information including email addresses, account balances, currency types, and billing configurations without authorization checks.