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Advanced Custom Fields <= 6.3.8 - Authenticated (Admin+) Limited Arbitrary Function Call

Wordfence Intelligence > Vulnerability Database > Advanced Custom Fields <= 6.3.8 - Authenticated (Admin+) Limited Arbitrary Function Call

5.1

Improper Control of Generation of Code ('Code Injection')

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

CVE	CVE-2024-9529
CVSS	5.1 (Medium)
Publicly Published	October 7, 2024
Last Updated	October 16, 2024
Researcher	Automattic

Description

The Advanced Custom Fields (ACF) plugin for WordPress is vulnerable to limited arbitrary function calls via the 'register_meta_box_cb' and 'meta_box_cb' parameters in all versions up to, and including, 6.3.8 (excluding 6.3.6.2) due to insufficient input validation on those parameters. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary functions, like WordPress functions, in custom post types that will execute whenever a user accesses the injected post type. This can be leveraged to trick other users like administrators accessing posts into performing unauthorized actions through functions, and is not a very serious risk for the vast majority of site owners. Please follow the reference listed in this vulnerability record for instructions on how to update to the latest version of ACF that patches this issue and ensures accessibility to updates moving forward. Please note this issue was partially patched in 6.3.8 and 6.3.6.1 - 6.3.6.2, however, was hardened further in 6.3.6.3 and 6.3.9.

References

Vulnerability Details for Secure Custom Fields

Secure Custom Fields

Software Type	Plugin
Software Slug	advanced-custom-fields (view on wordpress.org)
Patched?	Yes
Remediation	Update to version 6.3.6.3, or a newer patched version
Affected Version	<= 6.3.6.2
Patched Version	6.3.6.3

2 other affected software packages

Advanced Custom Fields

Software Type	Plugin
Software Slug	advanced-custom-fields
Patched?	Yes
Remediation	Update to version 6.3.9, or a newer patched version
Affected Versions	6.3.7 6.3.8 <= 6.3.6
Patched Version	6.3.9

Advanced Custom Fields Pro

Software Type	Plugin
Software Slug	advanced-custom-fields-pro
Patched?	Yes
Remediation	Update to version 6.3.9, or a newer patched version
Affected Version	<= 6.3.8
Patched Version	6.3.9

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