CVE-2026-22789Public exploitNetwork attack vector

Authenticated RCE via mismatched upload field validation

Published Jan 12, 2026 · Updated Jan 12, 2026

Arbitrary file upload in SMEWebify WebErpMesv2 before 1.19 allows remote authenticated users to execute PHP code via image endpoints. QuoteLinesController::StoreImage and OrderLinesController::StoreImage validate the image field but move the unvalidated picture field into public web directories under an attacker-controlled filename. Any authenticated account can submit a PHP script and request its public URL, executing commands with the web server's privileges.

CVSS severity5.4
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in SMEWebify WebErpMesv2 before 1.19 allows remote authenticated users to execute PHP code via image endpoints. QuoteLinesController::StoreImage and OrderLinesController::StoreImage validate the image field but move the unvalidated picture field into public web directories under an attacker-controlled filename. Any authenticated account can submit a PHP script and request its public URL, executing commands with the web server's privileges.

The record

CVE
CVE-2026-22789
Published
Jan 12, 2026
Updated
Jan 12, 2026
Vendor
SMEWebify
Product
WebErpMesv2
Classifications
CWE-616, CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 12, 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 privilegesauthenticated

What is affected?

SMEWebify · WebErpMesv2version=< 1.19

Published CVSS scores

5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-616Incomplete Identification of Uploaded File Variables (PHP)
CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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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