{"id":"CVE-2026-77780","state":"PUBLISHED","title":"Unvalidated bank account and card foreign keys in the Prospero Flow CRM transaction save endpoint allow cross-tenant disclosure of banking identifiers","description":"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.","publishedAt":"2026-08-21T12:12:59.160Z","updatedAt":"2026-08-21T16:12:40.967Z","severity":{"score":5.3,"label":"Medium","version":"4.0","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","source":"Secur0"},"assigner":"Secur0","products":["Roskus Prospero Flow CRM"],"affected":[{"vendor":"Roskus","product":"Prospero Flow CRM","defaultStatus":"unaffected","versions":[{"version":"4.9.1","status":"affected","lessThan":"5.14.2","versionType":"semver"}],"repo":"https://github.com/Roskus/prospero-flow-crm","modules":["Transaction (Accounting) save path","Accounting listing"],"programFiles":["app/Http/Controllers/Transaction/TransactionSaveController.php","app/Http/Requests/TransactionSaveRequest.php"]}],"references":["https://github.com/Roskus/prospero-flow-crm/commit/5fd1fe862bbdcbacf5d7e05c1c123981d8809674","https://github.com/Roskus/prospero-flow-crm/pull/261","https://secur0.com/en/cna/cve-list/cve-2026-77780-idor-unvalidated-bank-foreign-keys-prospero-transaction-save"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77780.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77780","state":"PUBLISHED","datePublished":"2026-08-21T12:12:59.160Z","dateUpdated":"2026-08-21T16:12:40.967Z","assignerShortName":"Secur0","assignerOrgId":"4daa8cea-433a-44bd-9456-53b127fc289a","dateReserved":"2026-08-21T11:30:36.990Z"},"containers":{"cna":{"title":"Unvalidated bank account and card foreign keys in the Prospero Flow CRM transaction save endpoint allow cross-tenant disclosure of banking identifiers","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Roskus","product":"Prospero Flow CRM","defaultStatus":"unaffected","versions":[{"version":"4.9.1","status":"affected","lessThan":"5.14.2","versionType":"semver"}],"repo":"https://github.com/Roskus/prospero-flow-crm","modules":["Transaction (Accounting) save path","Accounting 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No tagged release carries the fix; the newest tag v5.14.0 is\naffected. Rows already written are not corrected by the patch.","supportingMedia":[{"type":"text/html","base64":false,"value":"Upgrade to 5.14.2 or later. No tagged release carries the fix; the newest tag <code>v5.14.0</code> is\naffected. Rows already written are not corrected by the patch."}]}],"credits":[{"lang":"en","value":"Adrián García López","type":"finder"},{"lang":"en","value":"Xoán M. Otero Jorge","type":"analyst"},{"lang":"en","value":"Darío Rivas Quero","type":"analyst"},{"lang":"en","value":"Secur0 CNA","type":"coordinator"},{"lang":"en","value":"Gustavo Novaro","type":"remediation developer"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T15:56:49.202825Z","id":"CVE-2026-77780","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-21T16:12:40.967Z"}}]}}}