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CVE-2026-78365— IDOR and missing authorization in Prospero Flow CRM supplier API allows cross-tenant read and modification

Quick assessment

Affected
Roskus Prospero Flow CRM
Exploitation
Public or AI PoC available; prioritize validation
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 版本 4.0.0 至 5.3.1 中的供应商 API 存在通过用户可控密钥绕过授权控制的漏洞。攻击者只需向 /api/supplier/{id} 发送 PUT 请求，并在请求体中设置 company_id 字段，即可在已认证用户的情况下，读取和修改其他公司的供应商记录，并将其重新分配至自己的公司。

CVSS 9.3 · Critical EPSS 0.37% · P30

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account

Affected Version Matrix 1

VendorProduct Version RangeStatus
Roskus Prospero Flow CRM 4.0.0< 5.3.2 affected
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I. Basic Information for CVE-2026-78365

Vulnerability Information
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Vulnerability Title
IDOR and missing authorization in Prospero Flow CRM supplier API allows cross-tenant read and modification
Source: CVE Program / CVE List V5
Vulnerability Description
Authorization Bypass Through User-Controlled Key in the supplier API in Roskus Prospero Flow CRM 4.0.0 through 5.3.1 allows any authenticated user to read and modify another company's supplier record, and to reassign it to their own company, via a PUT request to /api/supplier/{id} setting company_id in the body.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Roskus Prospero Flow CRM 4.0.0 ~ 5.3.2 -

II. Public POCs for CVE-2026-78365

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9657 chars
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III. Intelligence Information for CVE-2026-78365

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Patches & Fixes for CVE-2026-78365 (2)

Other References for CVE-2026-78365 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-78365

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