CVE-2023-1313Public exploitNetwork attack vector

Authenticated code execution via PHP asset upload

Published Mar 10, 2023 · Updated Mar 3, 2025

Unrestricted file upload in Cockpit CMS before 2.4.1 allows remote authenticated users to execute PHP code through the Assets manager. The upload handler in modules/Assets/bootstrap.php passed an allowed PHP filename to move_uploaded_file without rejecting the executable extension, placing attacker-controlled code in web-accessible asset storage. An account with asset-upload permission is required, and successful execution runs with the privileges of the web-server process.

CVSS severity8.8
High
EPSS probability0.99%
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 Cockpit CMS before 2.4.1 allows remote authenticated users to execute PHP code through the Assets manager. The upload handler in modules/Assets/bootstrap.php passed an allowed PHP filename to move_uploaded_file without rejecting the executable extension, placing attacker-controlled code in web-accessible asset storage. An account with asset-upload permission is required, and successful execution runs with the privileges of the web-server process.

The record

CVE
CVE-2023-1313
Published
Mar 10, 2023
Updated
Mar 3, 2025
Vendor
Cockpit HQ
Product
Cockpit CMS
Classifications
CWE-434, T1505.003, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 3, 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=unspecified <2.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Cockpit HQ · Cockpit CMSversion=unspecified <2.4.1

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2huntr.devCVSS:3.0/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 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-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web 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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