CVE-2024-3561: The Custom Field Suite plugin for WordPress is vulnerable to SQL Injection via the the 'Term' custom field in all versions up to, and including, 2.6.7 due to insufficient escaping on the user supplied

high Affects custom-field-suite (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published 2024-06-20; advisory modified 2026-06-17.

The Custom Field Suite plugin for WordPress is vulnerable to SQL Injection via the the 'Term' custom field in all versions up to, and including, 2.6.7 due to insufficient escaping on the user supplied

Package: custom-field-suite (WordPress plugin) WordPress
Affected versions: <=2.6.7
Fixed in: no fix recorded
Severity: high CVSS 8.8
Exploitation: not on CISA KEV · EPSS 1% (43.3th percentile)
Published: 2024-06-20
Source: nvd

References

CWE-89

NVD record custom-field-suite (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs How findings are ranked

Related advisories

CVE-2019-11871 medium The Custom Field Suite plugin before 2.5.15 for WordPress has XSS for editors or admins. same package: custom-field-suite (WordPress plugin)
CVE-2024-3562 high The Custom Field Suite plugin for WordPress is vulnerable to PHP Code Injection in all ver same package: custom-field-suite (WordPress plugin)
CVE-2024-3068 medium The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting v same package: custom-field-suite (WordPress plugin)
CVE-2024-3558 medium The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting v same package: custom-field-suite (WordPress plugin)
CVE-2024-0689 medium The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting v same package: custom-field-suite (WordPress plugin)
CVE-2024-3559 medium The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting v same package: custom-field-suite (WordPress plugin)