CVE-2023-4542Public exploitNetwork attack vector

Remote command execution via webshell-writing SQL injection

Published Aug 25, 2023 · Updated Aug 2, 2024

Command injection in D-Link DAR-8000-10 20230809 and earlier allows remote attackers to execute operating-system commands through its web interface. The /importhtml.php endpoint accepts attacker-supplied SQL that writes a PHP command shell to /app/sys1.php, whose cmd parameter then executes input. The published proof of concept supplies no session cookie, so network access to the management interface is sufficient for arbitrary command execution.

CVSS severity6.3
Medium
EPSS probability86.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in D-Link DAR-8000-10 20230809 and earlier allows remote attackers to execute operating-system commands through its web interface. The /importhtml.php endpoint accepts attacker-supplied SQL that writes a PHP command shell to /app/sys1.php, whose cmd parameter then executes input. The published proof of concept supplies no session cookie, so network access to the management interface is sufficient for arbitrary command execution.

The record

CVE
CVE-2023-4542
Published
Aug 25, 2023
Updated
Aug 2, 2024
Vendor
D-Link Corporation
Product
DAR-8000-10
Classifications
CWE-78, T1059, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=20230809

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link Corporation · DAR-8000-10version=20230809

Published CVSS scores

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter
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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