CVE-2023-26922Public exploitNetwork attack vector

Unauthenticated OS command execution via shell_exec

Published Mar 8, 2023 · Updated Mar 4, 2025

Command injection in Variscite matrix-gui 2 allows remote attackers to execute arbitrary OS commands through an HTTP request parameter. The execute-command.php endpoint reads the command query parameter and passes it unchanged to shell_exec, then returns the command output. No authentication gate is documented, so network access to the endpoint grants command execution with the web service's operating-system privileges.

CVSS severity9.8
Critical
EPSS probability1.17%
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 Variscite matrix-gui 2 allows remote attackers to execute arbitrary OS commands through an HTTP request parameter. The execute-command.php endpoint reads the command query parameter and passes it unchanged to shell_exec, then returns the command output. No authentication gate is documented, so network access to the endpoint grants command execution with the web service's operating-system privileges.

The record

CVE
CVE-2023-26922
Published
Mar 8, 2023
Updated
Mar 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS: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.

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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-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1059.004Command and Scripting Interpreter: Unix Shell
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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