CVE-2024-3564Network attack vector

Contributor-level code execution via shortcode template inclusion

Published Jun 1, 2024 · Updated Apr 8, 2026

Local file inclusion in Content Blocks (Custom Post Widget) 3.3.0 and earlier allows remote authenticated users to execute PHP code. The content_block shortcode passes an attacker-controlled template value to PHP file-loading logic without restricting it to an approved theme directory. Contributor access is required; inclusion can expose server data or execute an uploaded PHP payload within the WordPress process.

CVSS severity8.8
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in Content Blocks (Custom Post Widget) 3.3.0 and earlier allows remote authenticated users to execute PHP code. The content_block shortcode passes an attacker-controlled template value to PHP file-loading logic without restricting it to an approved theme directory. Contributor access is required; inclusion can expose server data or execute an uploaded PHP payload within the WordPress process.

The record

CVE
CVE-2024-3564
Published
Jun 1, 2024
Updated
Apr 8, 2026
Vendor
VanderWijk Consultancy
Product
Content Blocks (Custom Post Widget)
Classifications
CWE-98, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=3.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

VanderWijk Consultancy · Content Blocks (Custom Post Widget)version=0 <=3.3.0

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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