CVE-2026-3231The 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 Wo…
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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.
- CVSS
- 7.2 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block-order-data.php#L437
- https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block.php#L388
- https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/includes/utils/class-thwcfd-utils.php#L476
- 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
- https://research.cleantalk.org/cve-2026-3231/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/df406e59-94d9-4704-82a3-02c2c1773c82?source=cve
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.