CVE-2026-7600Public exploitNetwork attack vector

Authenticated command execution via shell-string concatenation

Published May 2, 2026 · Updated May 2, 2026

OS command injection in ArtMin96 Yii2 MCP Server 1.0.2 allows remote authenticated users to execute commands through MCP tool calls. The yii_command_help and yii_execute_command handlers concatenate attacker-controlled commands and arguments into shell strings passed to child_process.exec without escaping or argument separation. Reachability requires MCP tool access, a valid Yii console script, initialized database configuration, PHP CLI, and a host shell; injected commands inherit the server process's privileges.

CVSS severityUnavailable
Unscored
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

OS command injection in ArtMin96 Yii2 MCP Server 1.0.2 allows remote authenticated users to execute commands through MCP tool calls. The yii_command_help and yii_execute_command handlers concatenate attacker-controlled commands and arguments into shell strings passed to child_process.exec without escaping or argument separation. Reachability requires MCP tool access, a valid Yii console script, initialized database configuration, PHP CLI, and a host shell; injected commands inherit the server process's privileges.

The record

CVE
CVE-2026-7600
Published
May 2, 2026
Updated
May 2, 2026
Vendor
ArtMin96
Product
Yii2 MCP Server
Classifications
CWE-78, CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 2, 2026CVE publishedPublication date reported by the CVE source.
  2. May 2, 2026Record 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=1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ArtMin96 · Yii2 MCP Serverversion=1.0.2

Published CVSS scores

5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Command and Scripting Interpreter: Unix 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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