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CVE-2026-3231

HIGH 7.2 CVSS 3.1
Published
March 11, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

The Checkout Field Editor (Checkout Manager) for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom radio and checkboxgroup field values submitted through the WooCommerce Block Checkout Store API in all versions up to, and including, 2.1.7. This is due to the `prepare_single_field_data()` method in `class-thwcfd-block-order-data.php` first escaping values with `esc_html()` then immediately reversing the escaping with `html_entity_decode()` for radio and checkboxgroup field types, combined with a permissive `wp_kses()` allowlist in `get_allowed_html()` that explicitly permits the `<select>` element with the `onchange` event handler attribute. This makes it possible for unauthenticated attackers to inject arbitrary web scripts via the Store API checkout endpoint that execute when an administrator views the order details page.

Affected WordPress components

  • Checkout Field Editor (Checkout Manager) for WooCommerce Plugin · woo-checkout-field-editor-pro
    Confirmed match Active
    Up to and including 2.1.7
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • themehigh Checkout Field Editor (Checkout Manager) for WooCommerce — Up to and including 2.1.7

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block-order-data.php#L437
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block.php#L388
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/includes/utils/class-thwcfd-utils.php#L476
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3478914%40woo-checkout-field-editor-pro%2Ftrunk&old=3454287%40woo-checkout-field-editor-pro%2Ftrunk&sfp_email=&sfph_mail=#file1
  • research.cleantalk.org https://research.cleantalk.org/cve-2026-3231/
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/df406e59-94d9-4704-82a3-02c2c1773c82?source=cve
  • nvd.nist.gov Official NVD record