CVE-2024-4565

Advanced Custom Fields <= 6.2.10 - Authenticated (Contributor+) Arbitrary Custom Field Access

2024-05-30 00:00

Strategic Overview

Status: Patched in 6.3.0
Affected Plugin: Advanced Custom Fields Pro
Affected Version: <= 6.2.10
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2024-4565

View all Advanced Custom Fields Pro vulnerabilities

At a glance

CVE-2024-4565 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Advanced Custom Fields Pro WordPress plugin, affecting versions <= 6.2.10. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 6.3.0; sites on affected versions should update now. Disclosed May 2024, reported by Francesco Carlucci.

Vulnerability Overview

The Advanced Custom Fields (ACF) plugin for WordPress is vulnerable to arbitrary custom field access in all versions up to, and including, 6.2.10. This is due to the plugin not properly restricting what post meta can be displayed through the plugin's shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to retrieve potentially sensitive information from custom fields.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Advanced Custom Fields Pro <= 6.2.10 takes an account at Contributor level or above. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Advanced Custom Fields Pro the fix is 6.3.0: builds <= 6.2.10 are affected, anything from 6.3.0 onward is not.

Remediation

Update to version 6.3.0, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Advanced Custom Fields Pro 6.3.0 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-4565 https://www.wordfence.com/threat-intel/vulnerabilities/id/b93e9e84-1675-4128-a018-03833ff75943 https://nvd.nist.gov/vuln/detail/CVE-2024-4565

Related records

Other vulnerabilities in Advanced Custom Fields Pro

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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