CVE-2024-52677Network attack vector

Unauthenticated server compromise via unrestricted file upload

Published Nov 20, 2024 · Updated Mar 13, 2025

Unrestricted file upload in HkCms 2.3.2.240702 and earlier allows remote attackers to place dangerous files on the server. The getFileName method in app/common/library/Upload.php accepts upload filenames without adequately restricting dangerous file types, allowing server-processable content to be stored. No authentication or user interaction is required; processing uploaded executable content can compromise site data and service availability.

CVSS severity9.8
Critical
EPSS probability0.64%
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 HkCms 2.3.2.240702 and earlier allows remote attackers to place dangerous files on the server. The getFileName method in app/common/library/Upload.php accepts upload filenames without adequately restricting dangerous file types, allowing server-processable content to be stored. No authentication or user interaction is required; processing uploaded executable content can compromise site data and service availability.

The record

CVE
CVE-2024-52677
Published
Nov 20, 2024
Updated
Mar 13, 2025
Vendor
Guangzhou Hengqi Education Technology Co., Ltd.
Product
HkCms
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2025Record 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=2.3.2.240702

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Guangzhou Hengqi Education Technology Co., Ltd. · HkCmsversion=2.3.2.240702

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 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 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.

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Technologies

Your stack

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Your stack

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