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CVE-2026-19433— Authorization Bypass Through User-Controlled Key in Prospero Flow CRM contact save and vCard export

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是roskus组织开源的一款客户关系管理软件。 roskus Prospero Flow CRM 5.4.8之前版本存在授权问题漏洞，该漏洞源于contact management组件存在用户控制密钥的授权绕过问题，保存和导出操作在检索记录时未将查询限制为认证用户所属公司，导致任意公司的认证用户可覆盖其他公司的联系人数据，并通过联系人数字标识符下载该联系人的个人数据。

CVSS 8.6 · High EPSS 0.25% · P17

Affected Version Matrix 1

VendorProduct Version RangeStatus
Roskus Prospero Flow CRM < 5.4.8 affected
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I. Basic Information for CVE-2026-19433

Vulnerability Information
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Vulnerability Title
Authorization Bypass Through User-Controlled Key in Prospero Flow CRM contact save and vCard export
Source: CVE Program / CVE List V5
Vulnerability Description
Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's personal data as a vCard via the contact's numeric identifier, because the save and export operations retrieve the record without constraining the query to the authenticated user's company.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
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组织开源的一款客户关系管理软件。 roskus Prospero Flow CRM 5.4.8之前版本存在授权问题漏洞，该漏洞源于contact management组件存在用户控制密钥的授权绕过问题，保存和导出操作在检索记录时未将查询限制为认证用户所属公司，导致任意公司的认证用户可覆盖其他公司的联系人数据，并通过联系人数字标识符下载该联系人的个人数据。
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 0 ~ 5.4.8 -

II. Public POCs for CVE-2026-19433

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8980 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-19433

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Patches & Fixes for CVE-2026-19433 (2)

Vendor Advisories for CVE-2026-19433 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-19433

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