CVE-2026-3231
Checkout Field Editor (Checkout Manager) for WooCommerce <= 2.1.7 - Unauthenticated Stored Cross-Site Scripting via Block Checkout Custom Radio Field
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.33% · top 73% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
themehigh · Checkout Field Editor (Checkout Manager) for WooCommerce
- affected ≤ 2.1.7
References (6)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/df406e59-94d9-4704-82a3-02c2c1773c82?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block-order-data.php#L437 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/includes/utils/class-thwcfd-utils.php#L476 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block.php#L388 (opens in a new tab)
- 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 (opens in a new tab)
- https://research.cleantalk.org/cve-2026-3231/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-3231)Record last updated .