CVE-2024-42991Public exploitNetwork attack vector

Unauthenticated command execution via UEditor XML upload

Published Sep 3, 2024 · Updated Sep 3, 2024

Unrestricted file upload in MingSoft MCMS 5.4.1 allows remote attackers to execute commands through the public UEditor endpoint. The handler accepts XML at /static/plugins/ueditor/1.4.3.3/jsp/editor.do, enabling a crafted web.xml to register an uploaded file suffix for JSP execution. No authentication or user interaction is required, but exploitation depends on Tomcat applying the altered deployment descriptor and serving a second uploaded file as JSP.

CVSS severity8.1
High
EPSS probability0.81%
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 MingSoft MCMS 5.4.1 allows remote attackers to execute commands through the public UEditor endpoint. The handler accepts XML at /static/plugins/ueditor/1.4.3.3/jsp/editor.do, enabling a crafted web.xml to register an uploaded file suffix for JSP execution. No authentication or user interaction is required, but exploitation depends on Tomcat applying the altered deployment descriptor and serving a second uploaded file as JSP.

The record

CVE
CVE-2024-42991
Published
Sep 3, 2024
Updated
Sep 3, 2024
Vendor
MingSoft
Product
MCMS
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2024Record 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=5.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MingSoft · MCMSversion=5.4.1

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:H/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

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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
T1190Exploit Public-Facing Application

Public exploit references

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Technologies

Your stack

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Your stack

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