CVE-2024-4565Public exploitNetwork attack vector

Contributor-level custom-field disclosure via unchecked shortcode references

Published Jun 20, 2024 · Updated Aug 27, 2025

Authorization bypass in Advanced Custom Fields and ACF PRO before 6.3 allows remote authenticated users to read custom fields via shortcode. The ACF shortcode accepts attacker-chosen post IDs and field names, then renders the referenced post metadata without verifying access to that post or field. Contributor-level access and knowledge or guessing of a field key are required, and exposed data can include private-post or options-page values.

CVSS severity4.3
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Advanced Custom Fields and ACF PRO before 6.3 allows remote authenticated users to read custom fields via shortcode. The ACF shortcode accepts attacker-chosen post IDs and field names, then renders the referenced post metadata without verifying access to that post or field. Contributor-level access and knowledge or guessing of a field key are required, and exposed data can include private-post or options-page values.

The record

CVE
CVE-2024-4565
Published
Jun 20, 2024
Updated
Aug 27, 2025
Vendor
WP Engine
Product
Advanced Custom Fields
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=0 <6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WP Engine · Advanced Custom Fieldsversion=0 <6.3
WP Engine · Advanced Custom Fields PROversion=0 <6.3

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
6.5CVE Program via OSVCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

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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