CVE-2026-49827Public exploitNetwork attack vector

Unauthenticated code execution via HR expense upload

Published Aug 13, 2026 · Updated Aug 13, 2026

Unrestricted file upload in SMEWebify WebErpMesv2 1.19 and earlier allows remote attackers to execute code through an HR expense request. HumanResourcesController preserves the client-supplied PHP extension and moves scan_file into the web-accessible public/file/Expense directory without MIME or extension validation. Default open registration and fail-open role handling let a newly registered account upload and invoke a web shell, exposing application data and operating-system command execution.

CVSS severity9.8
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in SMEWebify WebErpMesv2 1.19 and earlier allows remote attackers to execute code through an HR expense request. HumanResourcesController preserves the client-supplied PHP extension and moves scan_file into the web-accessible public/file/Expense directory without MIME or extension validation. Default open registration and fail-open role handling let a newly registered account upload and invoke a web shell, exposing application data and operating-system command execution.

The record

CVE
CVE-2026-49827
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
SMEWebify
Product
WebErpMesv2
Classifications
CWE-434, CWE-306, CWE-20, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 1.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SMEWebify · WebErpMesv2version=<= 1.19

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-306Missing Authentication for Critical Function
CWE-20Improper Input Validation
T1190Exploit Public-Facing Application
T1505.003Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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