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CVE-2026-49827— WebErpMesv2 has Unauthenticated RCE via Unrestricted File Upload in HR Expense scan_file (CWE-434)

Quick assessment

Affected
SMEWebify WebErpMesv2
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.

Kevin ΣEM是Kevin个人开发者的一款多功能综合型软件工具。 Kevin ΣEM 1.19及之前版本存在安全漏洞，该漏洞源于HR Expense的scan_file参数存在任意PHP文件上传问题，可能导致远程代码执行。

CVSS 9.8 · Critical EPSS 0.86% · P59

Affected Version Matrix 1

VendorProduct Version RangeStatus
SMEWebify WebErpMesv2 <= 1.19 affected
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I. Basic Information for CVE-2026-49827

Vulnerability Information
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Vulnerability Title
WebErpMesv2 has Unauthenticated RCE via Unrestricted File Upload in HR Expense scan_file (CWE-434)
Source: CVE Program / CVE List V5
Vulnerability Description
WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Versions 1.19 and prior allow any self-registered user to upload arbitrary PHP files through the HR Expense scan_file parameter, leading to Remote Code Execution. Combined with open registration (no invite required) and broken role middleware (CheckUserRole silently swallows RouteNotFoundException), this chain is effectively unauthenticated RCE against any default installation. The issue is patched in commit 5c54862fa044b363fd2be03d586750e81afd6818.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Kevin ΣEM 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kevin ΣEM是Kevin个人开发者的一款多功能综合型软件工具。 Kevin ΣEM 1.19及之前版本存在安全漏洞，该漏洞源于HR Expense的scan_file参数存在任意PHP文件上传问题，可能导致远程代码执行。
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
SMEWebify WebErpMesv2 <= 1.19 -

II. Public POCs for CVE-2026-49827

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8066 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-49827

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Patches & Fixes for CVE-2026-49827 (1)

Vendor Advisories for CVE-2026-49827 (1)

IV. Related Vulnerabilities

Same product: WebErpMesv2
Same vendor: SMEWebify
Same weakness: CWE-20