CVE-2023-29386Public exploitNetwork attack vector

Arbitrary file upload via unchecked ZIP extraction

Published Mar 26, 2024 · Updated Apr 28, 2026

Arbitrary file upload in Julien Crego Manager for IcoMoon 2.0 and earlier allows remote attackers to place executable files on servers. The upload function omits file-type validation before extracting attacker-controlled ZIP contents into a web-accessible location. Wordfence reports no authentication gate, while Patchstack assigns high privileges; requesting an extracted PHP file executes code in the WordPress service context.

CVSS severity9.1
Critical
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in Julien Crego Manager for IcoMoon 2.0 and earlier allows remote attackers to place executable files on servers. The upload function omits file-type validation before extracting attacker-controlled ZIP contents into a web-accessible location. Wordfence reports no authentication gate, while Patchstack assigns high privileges; requesting an extracted PHP file executes code in the WordPress service context.

The record

CVE
CVE-2023-29386
Published
Mar 26, 2024
Updated
Apr 28, 2026
Vendor
Julien Crego
Product
Manager for IcoMoon
Classifications
CWE-434, T1190
Attack vector
network
Privileges
Unavailable

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 <2.0
  2. Affected versionversion=n/a <=2.0 changes=[{"at":"2.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Julien Crego · Manager for IcoMoonversion=0 <2.0; version=n/a <=2.0 changes=[{"at":"2.1","status":"unaffected"}]

Published CVSS scores

9.1PatchstackCVSS:3.1/AV:N/AC:L/PR:H/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
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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