Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in zamartz Checkout Field Visibility for WooCommerce allows PHP Local File Inclusion. This issue affects Checkout Field Visibility for WooCommerce: from n/a through 1.2.3.
The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions.