CVE-2024-34761Network attack vector

Contributor-level code execution via overridden block callbacks

Published Jun 10, 2024 · Updated Apr 28, 2026

Code injection in ACF Blocks in WP Engine Advanced Custom Fields PRO before 6.2.10 allows remote authenticated users to execute server code. The block renderer accepts client-controlled attributes that override the registered render template, render callback, or legacy asset callback. Exploitation requires contributor-level post-editing access and an ACF Block; successful execution runs with the WordPress hosting account's privileges.

CVSS severity8.5
High
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

Code injection in ACF Blocks in WP Engine Advanced Custom Fields PRO before 6.2.10 allows remote authenticated users to execute server code. The block renderer accepts client-controlled attributes that override the registered render template, render callback, or legacy asset callback. Exploitation requires contributor-level post-editing access and an ACF Block; successful execution runs with the WordPress hosting account's privileges.

The record

CVE
CVE-2024-34761
Published
Jun 10, 2024
Updated
Apr 28, 2026
Vendor
WP Engine
Product
Advanced Custom Fields
Classifications
CWE-94, CAPEC-242, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 10, 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 <6.2.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WP Engine · Advanced Custom Fieldsversion=0 <6.2.10
WP Engine · Advanced Custom Fields PROversion=n/a <6.2.10 changes=[{"at":"6.2.10","status":"unaffected"}]

Published CVSS scores

8.5PatchstackCVSS:3.1/AV:N/AC:H/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-242Code Injection
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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