CVE-2026-24727Network attack vector

Administrator command execution via dangerous ZIP upload

Published Jul 24, 2026 · Updated Jul 24, 2026

Unrestricted file upload in SUNNET Corporate Training Management System 10.3 and earlier allows remote authenticated users to execute commands. The e-paper draft upload function accepts a crafted ZIP archive containing a server-executable file without restricting its dangerous type. Administrator privileges are required; successful upload exposes the server to arbitrary command execution and resulting data or service compromise.

CVSS severity9.3
Critical
EPSS probability0.67%
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 Corporate Training Management System 10.3 and earlier allows remote authenticated users to execute commands. The e-paper draft upload function accepts a crafted ZIP archive containing a server-executable file without restricting its dangerous type. Administrator privileges are required; successful upload exposes the server to arbitrary command execution and resulting data or service compromise.

The record

CVE
CVE-2026-24727
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
Sunnet Technology Co., Ltd.
Product
CTMS Corporate Training Management System
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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=0 <=v.10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Sunnet Technology Co., Ltd. · CTMS Corporate Training Management Systemversion=0 <=v.10.3

Published CVSS scores

9.3ZUSO Advanced Research Team (ZUSO ART)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA: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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web Shell

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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