01 Record

CVE-2026-77780

Unvalidated bank account and card foreign keys in the Prospero Flow CRM transaction save endpoint allow cross-tenant disclosure of banking identifiers

MediumPUBLISHEDCNA: Secur0

Base score5.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

View raw JSON CVE Program record

02 Description

Unvalidated bank account and card foreign keys in the Prospero Flow CRM transaction save endpoint allow cross-tenant disclosure of banking identifiers

03 Metadata

Published

2026-08-21 12:12Z13 HR AGO

Last updated

2026-08-21 16:12Z9 HR AGO

Reserved

2026-08-21

Assigning CNA

Secur0

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CVSS vector

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

Weaknesses

CWE-639Authorization Bypass Through User-Controlled KeyBase

SSVC decision

ExploitationnoneAutomatablenoTechnical Impactpartial

Data version

5.2

Document digest

32dea824c857162eae120fa73302bba8c38936ad75ece32f3acd846920886cbf

04 Affected products

VendorProductVersionsPlatforms

RoskusProspero Flow CRM4.9.1 to < 5.14.2—

05 References

github.comhttps://github.com/Roskus/prospero-flow-crm/commit/5fd1fe862bbdcbacf5d7e05c1c123981d8809674patch
github.comhttps://github.com/Roskus/prospero-flow-crm/pull/261issue-tracking
secur0.comhttps://secur0.com/en/cna/cve-list/cve-2026-77780-idor-unvalidated-bank-foreign-keys-prospero-transaction-savetechnical-descriptionthird-party-advisory

06 Remediation

Upgrade to 5.14.2 or later. No tagged release carries the fix; the newest tag v5.14.0 is affected. Rows already written are not corrected by the patch.