CVE-2026-73488

Summary

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.

Affected Software

Weaknesses

• CWE-639: Authorization Bypass Through User-Controlled Key

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm

References

• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm
• https://www.vulncheck.com/advisories/flowise-before-idor-via-customer-default-source-endpoint

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