CVE-2023-38388Network attack vector

Unauthenticated code execution via unregistered file upload

Published Mar 26, 2024 · Updated Apr 28, 2026

Unrestricted file upload in Artbees Jupiter X Core 3.3.5 and earlier allows remote attackers to execute PHP files on WordPress servers. The unauthenticated wp_ajax_nopriv_raven_form_frontend handler reaches upload_files, which moves unregistered file fields into the upload directory without applying the form field's file-type allowlist. A site must run the affected premium plugin with the AJAX handler reachable; successful upload executes code in the WordPress process context.

CVSS severity9.0
Critical
EPSS probability1.70%
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 Artbees Jupiter X Core 3.3.5 and earlier allows remote attackers to execute PHP files on WordPress servers. The unauthenticated wp_ajax_nopriv_raven_form_frontend handler reaches upload_files, which moves unregistered file fields into the upload directory without applying the form field's file-type allowlist. A site must run the affected premium plugin with the AJAX handler reachable; successful upload executes code in the WordPress process context.

The record

CVE
CVE-2023-38388
Published
Mar 26, 2024
Updated
Apr 28, 2026
Vendor
Artbees
Product
Jupiter X Core
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=0 <=3.3.5
  2. Affected versionversion=n/a <=3.3.5 changes=[{"at":"3.3.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Artbees · Jupiter X Coreversion=0 <=3.3.5; version=n/a <=3.3.5 changes=[{"at":"3.3.8","status":"unaffected"}]

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.0PatchstackCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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