Product Feed Manager for WooCommerce < 6.6.44 - Authenticated (Shop Manager+) Path Traversal to File Deletion via 'provider' Parameter

Description

The Product Feed Manager for WooCommerce – CTX Feed – Support 220+ Shopping & Social Channels plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.6.43 via the 'provider' parameter. This makes it possible for authenticated attackers, with shop manager-level access and above, to delete arbitrary files on the server, which can lead to remote code execution when critical files are deleted. Exploitation requires two sequential REST API calls: first to /wp-json/ctxfeed/v1/make_feed/save_feed_config to persist the traversal payload in wp_options, then to /wp-json/ctxfeed/v1/manage_feeds/delete_feed to trigger the unlink(); deletion is further constrained to files whose extensions match the plugin's validated whitelist (csv, xml, tsv, xls, xlsx, json, txt).