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Public proof of concept

CVE-2023-4120

A public proof of concept exists; no exploitation attested.

  • Published2023-08-03
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability was found in Byzoro Smart S85F Management Platform up to 20230722 and classified as critical. This issue affects some unknown processing of the file importhtml.php. The manipulation of the argument sql leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-235967. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Timeline

dates in UTC
  1. 2023-08-0309:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-4120?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-4120?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Byzoro smart s85f
BranchAffectedFixed in
20230722.x≤ 20230722no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Byzoro Smart S85F Management Platform
    Affected
    • = 20230722no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2024-04-09

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2024-10-15
  • OpenCVESSVC decisionpoc—
  • CNACVSS 3.16.3known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNACVSS 2.06.5known since 2026-10-23
  • CNAweakness (CWE)CWE-77known since 2026-10-23
  • FIRST EPSSEPSS score62.3 %read 2026-11-02
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-08-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-jvmm-xwpf-wmm2

Frequently asked questions

What is CVE-2023-4120?

A vulnerability was found in Byzoro Smart S85F Management Platform up to 20230722 and classified as critical. This issue affects some unknown processing of the file importhtml.php. The manipulation of the argument sql leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-235967. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Is CVE-2023-4120 actively exploited?

A proof-of-concept exploit exists for CVE-2023-4120, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-4120?

CVE-2023-4120 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record