Medium severity · published Jul 15, 2026
CVE-2026-59236
Authorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injection
6.9
CVSS
0.6%
EPSS
No
On KEV
Description
Authorization Bypass Through User-Controlled Key (CWE-639) in the Excel import handlers (CustomerImport, LeadImport, ProductImport) in Roskus Prospero Flow CRM before 5.14.0 allows a remote, authenticated user of any role or company to create customer, lead, and product records inside another company's tenant via a spreadsheet whose company_id column points to the victim tenant, uploaded to POST /customer/import/excel/save, which maps company_id directly from the file and performs no check that it matches the authenticated user's company.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PF
Prospero Flow CRM · Roskus
1.0.0 before 5.14.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59236
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59236
github.com
https://github.com/Roskus/prospero-flow-crm/commit/bdd6c9770a7435a45f0411154671b8a3e94dcdaa
github.com
https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.14.0
secur0.com
https://secur0.com/en/cna/cve-list/cve-2026-59236-authorization-bypass-in-prospero-flow-crm-excel-import-allows-cross-tenant-record-injection
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