CVE-2024-52770Public exploitNetwork attack vector

Authenticated code execution via extension-filter bypass

Published Nov 20, 2024 · Updated Nov 21, 2024

Arbitrary file upload in DedeBIZ 6.3.0 allows remote authenticated users to execute code through the administrative file manager. The upload branch blocks several executable suffixes but accepts phtml or .htaccess names, trusts an image-like MIME result, and writes the supplied file into a chosen site directory. Administrative file-manager permission is required, and a successful upload places attacker-controlled PHP content where the web server can execute it.

CVSS severity9.8
Critical
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

Arbitrary file upload in DedeBIZ 6.3.0 allows remote authenticated users to execute code through the administrative file manager. The upload branch blocks several executable suffixes but accepts phtml or .htaccess names, trusts an image-like MIME result, and writes the supplied file into a chosen site directory. Administrative file-manager permission is required, and a successful upload places attacker-controlled PHP content where the web server can execute it.

The record

CVE
CVE-2024-52770
Published
Nov 20, 2024
Updated
Nov 21, 2024
Vendor
Shanghai Muyun Intelligent Technology Co., Ltd.
Product
DedeBIZ
Classifications
CWE-79, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 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=6.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shanghai Muyun Intelligent Technology Co., Ltd. · DedeBIZversion=6.3.0

Published CVSS scores

9.8CISA-ADPCVSS: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.

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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1505.003Web Shell

Public exploit references

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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