CVE-2023-37839Network attack vector

Remote code execution via unrestricted PHP upload

Published Jul 13, 2023 · Updated Oct 30, 2024

Unrestricted file upload in DedeCMS 5.7.109 allows remote attackers to execute arbitrary code via a crafted PHP file. The /dede/file_manage_control.php handler accepts a PHP file for upload without restricting its dangerous executable type. Network access to the handler is sufficient; no authentication or user interaction is required, and the uploaded PHP executes on the server.

CVSS severity9.8
Critical
EPSS probability1.18%
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 DedeCMS 5.7.109 allows remote attackers to execute arbitrary code via a crafted PHP file. The /dede/file_manage_control.php handler accepts a PHP file for upload without restricting its dangerous executable type. Network access to the handler is sufficient; no authentication or user interaction is required, and the uploaded PHP executes on the server.

The record

CVE
CVE-2023-37839
Published
Jul 13, 2023
Updated
Oct 30, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS: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 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
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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