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CVE-2026-59236— Authorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injection

Quick assessment

Affected
Roskus Prospero Flow CRM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

roskus Prospero Flow CRM是roskus组织开源的一款基于 Laravel 13 构建的开源、多语言、多公司（白标）客户管理系统（CRM），支持 Docker 一键部署和 REST API 集成。 Roskus Prospero Flow CRM 5.14.0之前版本存在授权问题漏洞，该漏洞源于Excel导入处理程序存在通过用户控制密钥的授权绕过问题，允许远程认证用户通过上传包含目标租户ID的电子表格，在其他公司的租户内创建客户、线索和产品记录，因为程序直接从文件中映射company

AI Predicted 8.2 Difficulty: Easy EPSS 0.64% · P49

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account

Affected Version Matrix 1

VendorProduct Version RangeStatus
Roskus Prospero Flow CRM 1.0.0< 5.14.0 affected
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I. Basic Information for CVE-2026-59236

Vulnerability Information
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Vulnerability Title
Authorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injection
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Roskus Prospero Flow CRM 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
roskus Prospero Flow CRM是roskus组织开源的一款基于 Laravel 13 构建的开源、多语言、多公司（白标）客户管理系统（CRM），支持 Docker 一键部署和 REST API 集成。 Roskus Prospero Flow CRM 5.14.0之前版本存在授权问题漏洞，该漏洞源于Excel导入处理程序存在通过用户控制密钥的授权绕过问题，允许远程认证用户通过上传包含目标租户ID的电子表格，在其他公司的租户内创建客户、线索和产品记录，因为程序直接从文件中映射company
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Roskus Prospero Flow CRM 1.0.0 ~ 5.14.0 -

II. Public POCs for CVE-2026-59236

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III. Intelligence Information for CVE-2026-59236

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Patches & Fixes for CVE-2026-59236 (1)

Vendor Advisories for CVE-2026-59236 (1)

IV. Related Vulnerabilities

Same product: Prospero Flow CRM
Same vendor: Roskus
Same weakness: CWE-639

V. Comments for CVE-2026-59236

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