{"id":"CVE-2026-77780","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\nProspero Flow CRM 4.9.1 through 5.14.0 allows a user with transaction and accounting\ncreation permissions to disclose another company's bank account name, bank name and card\nlast four digits via a bank_account_id or bank_card_id belonging to that company in POST\n/transaction/save, which is persisted and rendered without any company ownership check.","modified":"2026-10-28T02:31:01.188730547Z","published":"2026-08-21T12:12:59.160Z","database_specific":{"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":[{"strategy":"StandardRange","range":[{"introduced":"4.9.1"},{"fixed":"5.14.2"}],"source":"AFFECTED_FIELD"}]},{"extracted_events":[{"source":"CPE_FIELD","strategy":"CPEApplicability","range":[{"introduced":"4.9.1"},{"fixed":"5.14.2"}]}]}],"cna_assigner":"Secur0"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77780.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77780"},{"type":"ADVISORY","url":"https://secur0.com/en/cna/cve-list/cve-2026-77780-idor-unvalidated-bank-foreign-keys-prospero-transaction-save"},{"type":"REPORT","url":"https://github.com/Roskus/prospero-flow-crm/pull/261"},{"type":"FIX","url":"https://github.com/Roskus/prospero-flow-crm/commit/5fd1fe862bbdcbacf5d7e05c1c123981d8809674"},{"type":"PACKAGE","url":"https://github.com/Roskus/prospero-flow-crm"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/roskus/prospero-flow-crm","events":[{"introduced":"0"},{"fixed":"5fd1fe862bbdcbacf5d7e05c1c123981d8809674"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"4.9.1"},{"last_affected":"5.14.0"}],"source":"DESCRIPTION"},{"range":[{"fixed":"5fd1fe862bbdcbacf5d7e05c1c123981d8809674"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["v5.14.0","v5.5.3","v4.6.0","v2.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77780.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"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"}]}