CVE-2023-51450Network attack vector

Unauthenticated command execution through exposed installer

Published Feb 22, 2024 · Updated Aug 2, 2024

OS command injection in the baserCMS installer before 5.0.9 allows remote attackers to execute arbitrary OS commands over the network. Public advisories identify the installer but do not disclose the affected parameter, command-building path, or failed neutralization operation. Exploitation requires installer files to be deployed on a web server and left accessible before installation; successful commands run with the web process's privileges.

CVSS severity8.1
High
EPSS probability1.46%
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 the baserCMS installer before 5.0.9 allows remote attackers to execute arbitrary OS commands over the network. Public advisories identify the installer but do not disclose the affected parameter, command-building path, or failed neutralization operation. Exploitation requires installer files to be deployed on a web server and left accessible before installation; successful commands run with the web process's privileges.

The record

CVE
CVE-2023-51450
Published
Feb 22, 2024
Updated
Aug 2, 2024
Vendor
baserCMS Users Community
Product
baserCMS
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 22, 2024CVE 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=< 5.0.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

baserCMS Users Community · baserCMSversion=< 5.0.9

Published CVSS scores

6.8JPCERT/CC and IPAAV:N/AC:M/Au:N/C:P/I:P/A:P
8.1JPCERT/CC and IPACVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.6GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
8.1NIST NVDCVSS:3.1/AV:N/AC:H/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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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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