WP Import – Ultimate CSV XML Importer for WordPress <= 7.27 - Authenticated (Subscriber+) Arbitrary File Deletion

The WP Import – Ultimate CSV XML Importer for WordPress plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the upload_function() function in all versions up to, and including, 7.27. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: WP Ultimate CSV Importer 7.28 closes this, and updating the plugin is the step that ends it.

• Firewall
• Scanner
• Alerts