Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-81931— Unrestricted upload of file with dangerous type in Prospero Flow CRM product photo allows stored cross-site scripting

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组织开源的一款客户关系管理软件。 roskus Prospero Flow CRM 5.16.0之前版本存在任意文件上传漏洞，该漏洞源于产品照片上传功能对危险类型文件限制不当，仅通过文件内容（magic bytes）验证并只拒绝固定PHP扩展名，且ProductSaveController::save()使用用户提供的扩展名将文件存储至public/asset/upload/product/目录，可能导致已认证用户在应用源中执行任意JavaSc

CVSS 4.8 · Medium EPSS 0.48% · P41

Affected Version Matrix 1

VendorProduct Version RangeStatus
Roskus Prospero Flow CRM < 5.16.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-81931

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Unrestricted upload of file with dangerous type in Prospero Flow CRM product photo allows stored cross-site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
Unrestricted Upload of File with Dangerous Type in the product photo upload in Roskus Prospero Flow CRM before 5.16.0 allows an authenticated user holding the create product permission (routine Seller role) to execute arbitrary JavaScript in the application origin. The photo validation rule classifies the file only by its content (magic bytes) and rejects only a fixed list of PHP extensions, while ProductSaveController::save() names the stored file using the client-supplied extension and copies it into the public web root. A file that begins with an image header and carries an HTML extension passes validation, is stored under public/asset/upload/product/, and is served with a text/html content type, turning the upload into first-party stored script execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
roskus Prospero Flow CRM 任意文件上传漏洞
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 5.16.0之前版本存在任意文件上传漏洞，该漏洞源于产品照片上传功能对危险类型文件限制不当，仅通过文件内容（magic bytes）验证并只拒绝固定PHP扩展名，且ProductSaveController::save()使用用户提供的扩展名将文件存储至public/asset/upload/product/目录，可能导致已认证用户在应用源中执行任意JavaSc
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 ~ 5.16.0 cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-81931

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-81931

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-81931 (1)

Vendor Advisories for CVE-2026-81931 (1)

IV. Related Vulnerabilities

Same product: Prospero Flow CRM
Same vendor: Roskus
Same weakness: CWE-434

V. Comments for CVE-2026-81931

No comments yet

Leave a comment