01 Record

CVE-2026-77759

IDOR and missing authorization in the Prospero Flow CRM transaction API allow cross-tenant reading of financial records

HighPUBLISHEDCNA: Secur0

Base score8.7 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

02 Description

IDOR and missing authorization in the Prospero Flow CRM transaction API allow cross-tenant reading of financial records

Published

2026-08-21 11:29Z14 HR AGO

Last updated

2026-08-21 11:53Z13 HR AGO

Reserved

2026-08-21

Assigning CNA

Secur0

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Weaknesses

SSVC decision

ExploitationnoneAutomatableyesTechnical Impactpartial

Data version

5.2

Document digest

1f53bf6d654cab522d8cd6f0c4f0e2e4c7c16dab0353264b8f582612fa6ff8ee

VendorProductVersionsPlatforms

RoskusProspero Flow CRM5.0.0 to < 5.3.6—

Upgrade to 5.3.6 or later. The fix was not tagged; the first tagged release carrying it is v5.5.3.