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Advanced Custom Fields <= 6.3.8 & Secure Custom Fields <= 6.3.6.2 - Authenticated (Admin+) Stored Cross-Site Scripting

Wordfence Intelligence > Vulnerability Database > Advanced Custom Fields <= 6.3.8 & Secure Custom Fields <= 6.3.6.2 - Authenticated (Admin+) Stored Cross-Site Scripting

4.4

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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

CVE	CVE-2024-49593
CVSS	4.4 (Medium)
Publicly Published	October 15, 2024
Last Updated	October 18, 2024
Researcher	Duc Luong Tran

Description

The Advanced Custom Fields & Secure Custom Fields plugins for WordPress are vulnerable to Stored Cross-Site Scripting via ACF field labels in all versions up to, and including, 6.3.8 & 6.3.6.2 respectively due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled. 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. Special note: only the minified files in Secure Custom Fields have been patched meaning the source build files are still vulnerable.

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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