CVE-2023-43226Network attack vector

Authenticated code execution via unrestricted PHP upload

Published Sep 28, 2023 · Updated Sep 23, 2024

Unrestricted file upload in DedeCMS 5.7.111 and earlier allows remote authenticated users to execute PHP code on the server. The dede/baidunews.php endpoint accepts a crafted PHP file without rejecting its executable type, allowing server-side processing after upload. Low-privileged access to the network endpoint is required, and successful exploitation grants code execution in the web server's security context.

CVSS severity8.8
High
EPSS probability0.86%
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 5.7.111 and earlier allows remote authenticated users to execute PHP code on the server. The dede/baidunews.php endpoint accepts a crafted PHP file without rejecting its executable type, allowing server-side processing after upload. Low-privileged access to the network endpoint is required, and successful exploitation grants code execution in the web server's security context.

The record

CVE
CVE-2023-43226
Published
Sep 28, 2023
Updated
Sep 23, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Web Shell

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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