CVE-2026-77780

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Source
https://cve.org/CVERecord?id=CVE-2026-77780
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77780.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77780
Published
2026-08-21T12:12:59Z
Modified
2026-10-28T02:31:01Z
Severity
  • 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Unvalidated bank account and card foreign keys in the Prospero Flow CRM transaction save endpoint allow cross-tenant disclosure of banking identifiers
Details

Authorization Bypass Through User-Controlled Key in the transaction save endpoint in Roskus Prospero Flow CRM 4.9.1 through 5.14.0 allows a user with transaction and accounting creation permissions to disclose another company's bank account name, bank name and card last four digits via a bank_account_id or bank_card_id belonging to that company in POST /transaction/save, which is persisted and rendered without any company ownership check.

Database specific 
{
    "cna_assigner":  "Secur0",
    "cwe_ids":  [
        "CWE-639"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77780.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "4.9.1"
                        },
                        {
                            "fixed":  "5.14.2"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "4.9.1"
                        },
                        {
                            "fixed":  "5.14.2"
                        }
                    ],
                    "source":  "CPE_FIELD",
                    "strategy":  "CPEApplicability"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/roskus/prospero-flow-crm

Affected ranges

Type
GIT
Repo
https://github.com/roskus/prospero-flow-crm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5fd1fe862bbdcbacf5d7e05c1c123981d8809674
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "4.9.1"
                },
                {
                    "last_affected":  "5.14.0"
                }
            ],
            "source":  "DESCRIPTION"
        },
        {
            "range":  [
                {
                    "fixed":  "5fd1fe862bbdcbacf5d7e05c1c123981d8809674"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v2.*
v2.0.1
v4.*
v4.6.0
v5.*
v5.14.0
v5.5.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77780.json"