CVE-2022-23043Public exploitNetwork attack vector

Admin command execution via permitted PHAR uploads

Published Feb 22, 2022 · Updated Aug 3, 2024

Unrestricted file upload in Tribal Systems Zenario CMS 9.2 allows remote authenticated users to execute server commands via a PHAR file. The custom File/MIME Types configuration accepts phar as a permitted extension, while the upload path stores the file at a public URL without classifying PHAR as executable. Administrator access is required to register the type and publish the upload, after which requests to the file execute commands under the web server account.

CVSS severity7.2
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

Unrestricted file upload in Tribal Systems Zenario CMS 9.2 allows remote authenticated users to execute server commands via a PHAR file. The custom File/MIME Types configuration accepts phar as a permitted extension, while the upload path stores the file at a public URL without classifying PHAR as executable. Administrator access is required to register the type and publish the upload, after which requests to the file execute commands under the web server account.

The record

CVE
CVE-2022-23043
Published
Feb 22, 2022
Updated
Aug 3, 2024
Vendor
Tribal Systems
Product
Zenario CMS
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Tribal Systems · Zenario CMSversion=9.2

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
9.1Fluid AttacksCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web 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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