CVE-2024-8338Public exploitNetwork attack vector

Arbitrary file upload via case-sensitive blacklist bypass

Published Aug 30, 2024 · Updated Aug 30, 2024

Unrestricted file upload in HFO4 shudong-share 2.4.7 allows remote authenticated users to place arbitrary files via fileReceive.php. The handler accepts a mixed-case .Php filename because its secondary blacklist check fails to normalize extension case. An authenticated user able to configure upload extensions can place PHP content that the web server executes when mixed-case PHP extensions are enabled.

CVSS severity5.3
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unrestricted file upload in HFO4 shudong-share 2.4.7 allows remote authenticated users to place arbitrary files via fileReceive.php. The handler accepts a mixed-case .Php filename because its secondary blacklist check fails to normalize extension case. An authenticated user able to configure upload extensions can place PHP content that the web server executes when mixed-case PHP extensions are enabled.

The record

CVE
CVE-2024-8338
Published
Aug 30, 2024
Updated
Aug 30, 2024
Vendor
HFO4
Product
shudong-share
Classifications
CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 30, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.4.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HFO4 · shudong-shareversion=2.4.7

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo