CVE-2025-15226Network attack vector

Unauthenticated code execution via dangerous file upload

Published Dec 29, 2025 · Updated Dec 29, 2025

Unrestricted file upload in Sunnet WMPro 5.0 through 5.2 allows remote attackers to execute arbitrary server code without authentication. TWCERT/CC identifies the upload path and web-shell execution chain but does not disclose the affected endpoint, handler, or failed validation operation. A network-reachable instance is sufficient; a submitted server-executable file runs with the web application's privileges and can compromise its data and availability.

CVSS severity9.3
Critical
EPSS probability0.58%
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 Sunnet WMPro 5.0 through 5.2 allows remote attackers to execute arbitrary server code without authentication. TWCERT/CC identifies the upload path and web-shell execution chain but does not disclose the affected endpoint, handler, or failed validation operation. A network-reachable instance is sufficient; a submitted server-executable file runs with the web application's privileges and can compromise its data and availability.

The record

CVE
CVE-2025-15226
Published
Dec 29, 2025
Updated
Dec 29, 2025
Vendor
Sunnet Technology Co., Ltd.
Product
WMPro
Classifications
CWE-434, CAPEC-650, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 29, 2025Record 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=5.0 <=5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sunnet Technology Co., Ltd. · WMProversion=5.0 <=5.2

Published CVSS scores

9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-650Upload a Web Shell to a Web Server
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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