CVE-2025-54940

Description

An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4.3. If this vulnerability is exploited, crafted HTML code may be rendered and page display may be tampered.

CVSS v3.1 Score

3.4

LOW

CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N

Weakness Type (CWE)

CWE-94 CWE-94

References

Other References

https://jvn.jp/en/jp/JVN21048820/ https://www.advancedcustomfields.com/blog/acf-6-4-3-security-release/

Frequently Asked Questions

What is CVE-2025-54940? +

An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4.3. If this vulnerability is exploited, crafted HTML code may be rendered and page display may be tampered. It has a CVSS v3.1 base score of 3.4 (LOW).

How severe is CVE-2025-54940? +

CVE-2025-54940 has a CVSS v3.1 score of 3.4 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

How do I check if I'm vulnerable to CVE-2025-54940? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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