CVE-2023-53941Public exploitNetwork attack vector

Unauthenticated command execution via app_service_control injection

Published Dec 18, 2025 · Updated Dec 18, 2025

OS command injection in EasyPHP Webserver 14.1 allows remote attackers to execute arbitrary commands through app_service_control. The settings handler at /index.php?zone=settings passes the POST parameter to the operating system as a command without neutralizing command syntax. No authentication or user interaction is required, and successful requests execute with the administrative privileges held by the Webserver process.

CVSS severity9.3
Critical
EPSS probability6.39%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in EasyPHP Webserver 14.1 allows remote attackers to execute arbitrary commands through app_service_control. The settings handler at /index.php?zone=settings passes the POST parameter to the operating system as a command without neutralizing command syntax. No authentication or user interaction is required, and successful requests execute with the administrative privileges held by the Webserver process.

The record

CVE
CVE-2023-53941
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
EasyPHP
Product
EasyPHP Webserver
Classifications
CWE-78, T1059.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 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=14.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

EasyPHP · EasyPHP Webserverversion=14.1

Published CVSS scores

9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

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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')
T1059.003Windows Command Shell

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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