CVE-2023-4873Public exploitNetwork attack vector

Remote code execution via SQL-driven webshell write

Published Sep 10, 2023 · Updated Jun 25, 2025

OS command injection in Byzoro Smart S45F 20230906 and earlier allows remote attackers to execute commands through the sql parameter. The importexport.php export path decodes attacker-supplied SQL and accepts SELECT INTO OUTFILE, allowing a PHP webshell to be written beneath the web root. The proof of concept shows no login step, but the CNA rates low privileges while NVD rates none, leaving the authentication requirement disputed.

CVSS severity6.3
Medium
EPSS probability22.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Byzoro Smart S45F 20230906 and earlier allows remote attackers to execute commands through the sql parameter. The importexport.php export path decodes attacker-supplied SQL and accepts SELECT INTO OUTFILE, allowing a PHP webshell to be written beneath the web root. The proof of concept shows no login step, but the CNA rates low privileges while NVD rates none, leaving the authentication requirement disputed.

The record

CVE
CVE-2023-4873
Published
Sep 10, 2023
Updated
Jun 25, 2025
Vendor
Byzoro
Product
Smart S45F
Classifications
CWE-78, T1190
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=20230906

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Byzoro · Smart S45Fversion=20230906

Published CVSS scores

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
9.8NIST NVDCVSS: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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
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

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Your stack

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