[Japanese]

JVNDB-2025-000058

WordPress plugin "Advanced Custom Fields" vulnerable to HTML injection

Overview

Advanced Custom Fields provided by WPEngine, Inc. contains the following vulnerability.
  • HTML injection (WE-94) - CVE-2025-54940

Shogo Kumamaru of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 3.4 (Low) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: High
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
Affected Products


WP Engine
  • Advanced Custom Fields versions prior to 6.4.3

Impact

Crafted HTML code may be rendered and page display may be tampered.
Solution

[Update the Software]
Update the software to the latest version according to the information provided by the developer.
Vendor Information

WP Engine
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2025-54940
References

  1. JVN : JVN#21048820
Revision History

  • [2025/08/08]
      Web page was published

Date Public2025/08/08
Date First Published2025/08/08
Date Last Updated2025/08/08