{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77780","assignerOrgId":"4daa8cea-433a-44bd-9456-53b127fc289a","state":"PUBLISHED","assignerShortName":"Secur0","dateReserved":"2026-08-21T11:30:36.990Z","datePublished":"2026-08-21T12:12:59.160Z","dateUpdated":"2026-08-21T16:12:40.967Z"},"containers":{"cna":{"providerMetadata":{"orgId":"4daa8cea-433a-44bd-9456-53b127fc289a","shortName":"Secur0","dateUpdated":"2026-08-21T12:12:59.160Z"},"title":"Unvalidated bank account and card foreign keys in the Prospero Flow CRM transaction save endpoint allow cross-tenant disclosure of banking identifiers","datePublic":"2026-08-21T12:05:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}],"affected":[{"vendor":"Roskus","product":"Prospero Flow CRM","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"],"versions":[{"status":"affected","version":"4.9.1","lessThan":"5.14.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.1","versionEndExcluding":"5.14.2"}]}]}],"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.","supportingMedia":[{"type":"text/html","base64":false,"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."}]}],"tags":["x_open-source"],"references":[{"url":"https://github.com/Roskus/prospero-flow-crm/commit/5fd1fe862bbdcbacf5d7e05c1c123981d8809674","tags":["patch"]},{"url":"https://github.com/Roskus/prospero-flow-crm/pull/261","tags":["issue-tracking"]},{"url":"https://secur0.com/en/cna/cve-list/cve-2026-77780-idor-unvalidated-bank-foreign-keys-prospero-transaction-save","tags":["technical-description","third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"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"}}],"solutions":[{"lang":"en","value":"Upgrade to 5.14.2 or later. 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":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-21T16:12:40.967Z"}}]}}