CVE-2026-3231 json
Checkout Field Editor (Checkout Manager) for WooCommerce <= 2.1.7 - Unauthenticated Stored Cross-Site Scripting via Block Checkout Custom Radio Field
published 2026-03-11 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-11131
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- themehigh Checkout Field Editor (Checkout Manager) for WooCommerce
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/df406e59-94d9-4704-82a3-02c2c1773c82?source=cve
- 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 /browser/woo-checkout-field-editor-pro/tags/2.1.7/includes/utils/class-thwcfd-utils.php#L476
- plugins.trac.wordpress.org /browser/woo-checkout-field-editor-pro/tags/2.1.7/block/class-thwcfd-block.php#L388
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&new=3478914%40woo-checkout-field-editor-pro%2Ftrunk&old=3454287%40w
- research.cleantalk.org /cve-2026-3231/
Sources
- CVE List CVE-2026-3231
- NVD CVE-2026-3231
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.