Advanced Custom Fields 6.1 - 6.1.7 - Authenticated (Administrator+) Stored Cross-Site Scripting

4.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2023-40068
CVSS 4.4 (Medium)
Publicly Published August 3, 2023
Last Updated September 5, 2023
Researchers Satoo Nakano
Ryotaro Imamura

Description

The Advanced Custom Fields plugin for WordPress is vulnerable to Stored Cross-Site Scripting via ACF post type and taxonomy labels in versions 6.1 to 6.1.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, 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.

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1 affected software package

Software Type Plugin
Software Slug advanced-custom-fields (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.1.8, or a newer patched version
Affected Version
  • 6.1 - 6.1.7
Patched Version
  • 6.1.8

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