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CVE-2026-73488 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm	CISA-ADP	ExploitVendor Advisory
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm	[email protected]	ExploitVendor Advisory
https://www.vulncheck.com/advisories/flowise-before-idor-via-customer-default-source-endpoint	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-639	Authorization Bypass Through User-Controlled Key	[email protected]

Affected Products

Product	Versions
flowiseai flowise	< 3.1.3
CPE cpe:2.3:a:flowiseai:flowise:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 3, 2026	Initial Analysis	[email protected]
Aug 13, 2026	CVE Modified	CISA-ADP
Aug 13, 2026	New CVE Received	[email protected]