CVE-2024-1918Public exploitNetwork attack vector

Authenticated arbitrary file upload via hidwel branch

Published Feb 27, 2024 · Updated Aug 1, 2024

Unrestricted file upload in Byzoro Smart S42 Management Platform 20240219 and earlier allows remote authenticated users to write arbitrary files. The userattestation.php endpoint enters a hidwel-controlled branch whose upload handling does not restrict the submitted file extension. A high-privilege authenticated PHP session is required, and public evidence does not establish whether uploaded files are executable.

CVSS severity4.7
Medium
EPSS probability2.33%
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 Byzoro Smart S42 Management Platform 20240219 and earlier allows remote authenticated users to write arbitrary files. The userattestation.php endpoint enters a hidwel-controlled branch whose upload handling does not restrict the submitted file extension. A high-privilege authenticated PHP session is required, and public evidence does not establish whether uploaded files are executable.

The record

CVE
CVE-2024-1918
Published
Feb 27, 2024
Updated
Aug 1, 2024
Vendor
Byzoro
Product
Smart S42 Management Platform
Classifications
CWE-434, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=20240219

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Byzoro · Smart S42 Management Platformversion=20240219

Published CVSS scores

5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
9.8National Institute of Standards and TechnologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
4.7VulDBCVSS:3.0/AV:N/AC:L/PR:H/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 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-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

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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