CVE-2026-59237: medium-severity vulnerability in Roskus Prospero Flow CRM
IDOR in Prospero Flow CRM Order API allows cross-tenant read and modification of orders
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.6%
Authorization Bypass Through User-Controlled Key (CWE-639) in the Order and OrderItem REST API controllers in Roskus Prospero Flow CRM before 5.5.3 allows a remote, authenticated user to read, modify, and delete orders and order items belonging to any other company (tenant) via a sequential numeric {id} supplied to GET /api/order/{id}, PUT /api/order/{id}, GET /api/order-item/{id}, PUT /api/order-item/{id}, or DELETE /api/order-item/{id}, because the controllers resolve records with Order::find($id) / Item::find($id) without scoping by the authenticated user's company.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
Roskus · Prospero Flow CRMRelated CVEs — Roskus Prospero Flow CRM
In the same product, most dangerous first.
CVE-2026-59239HIGHStored XSS in Prospero Flow CRM email body allows administrator account takeoverEPSS 0.7%CVE-2026-59235HIGHMissing authorization in Prospero Flow CRM allows low-privileged users to read all bank accountsEPSS 0.7%CVE-2026-59236MEDIUMAuthorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injectionEPSS 0.6%CVE-2026-59234MEDIUMAuthorization Bypass Through User-Controlled Key in Prospero Flow CRM calendar event deletionEPSS 0.6%CVE-2026-19734HIGHIDOR in Prospero Flow CRM allows cross-tenant product disclosure and hijackingEPSS 0.6%CVE-2026-19871CRITICALUse of hard-coded credentials in Prospero Flow CRM employee onboardingEPSS 0.5%
References
https://github.com/Roskus/prospero-flow-crm/commit/9a859c4de3d49674916773d346c60d89ad7febe0https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3https://secur0.com/en/cna/cve-list/cve-2026-59237-idor-in-prospero-flow-crm-order-api-allows-cross-tenant-read-and-modification-of-orders