CVE-2026-73488CWE-639

CVE-2026-73488

Medium · published August 13, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
29.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00370 · 29.7th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-13T16:17Z
Affected products (1)
ProductVersionsFixed in
flowiseai/flowise< 3.1.33.1.3
References (3)
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm · [email protected]https://www.vulncheck.com/advisories/flowise-before-idor-via-customer-default-source-endpoint · [email protected]https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2364-jh4q-m9vm · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 13 AUG 11:28Z
    Flowise before 3.1.3 IDOR via customer-default-source endpoint
    cvelistv5