Checkout Field Editor Pro legacy-file parameter permits arbitrary file reads
Checkout Field Editor for WooCommerce (Pro) through 3.7.7 accepts a caller-controlled filesystem path in the thwcfe_legacy_file parameter without confining it to the intended directory. Any authenticated user, including a Subscriber, can supply traversal sequences that make the plugin read arbitrary server files and disclose sensitive contents. The CNA record does not disclose the vulnerable endpoint, action or function that consumes the parameter.
- Component
- Checkout Field Editor for WooCommerce (Pro)
- Plugin slug
checkout-field-editor-for-woocommerce-pro- Affected
- <= 3.7.7
- Safe version
3.7.8- Published
- Jul 25, 2026
This CVE was published Jul 25, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Checkout Field Editor for WooCommerce (Pro) to 3.7.8 or later. The vendor identifies 3.7.8 as the current release immediately after the affected 3.7.7 boundary. Review low-privilege accounts and request logs, and rotate database or application secrets if sensitive files may have been exposed.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Checkout Field Editor for WooCommerce (Pro) plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.7.7 via the 'thwcfe_legacy_file' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N