High · published February 6, 2026
⚡ It turns out a missing capability check in the WP Duplicate plugin lets attackers upload files like it's a stroll in the park – and that park has no gates! Think of it like a restaurant with no checks on who can submit orders. A customer could sneak in a request that the kitchen never verifies, leading to some rather explosive surprises on the menu! An authenticated user could easily exploit this flaw, allowing them to set up a path for an unauthenticated attacker to execute remote code on your server. This could lead to devastating scenarios like data breaches or total server compromise, putting your entire site – and its visitors – at risk!
Think of it like a restaurant with no checks on who can submit orders. A customer could sneak in a request that the kitchen never verifies, leading to some rather explosive surprises on the menu! This vulnerability stems from a missing authorization capability check in the `process_add_site()` AJAX action of the WP Duplicate plugin, combined with path traversal issues in the file upload feature, which allows for arbitrary file uploads.
An authenticated user could easily exploit this flaw, allowing them to set up a path for an unauthenticated attacker to execute remote code on your server. This could lead to devastating scenarios like data breaches or total server compromise, putting your entire site – and its visitors – at risk! To secure your site, update the WP Duplicate plugin to version 1.1.9 or later immediately. Additionally, review your user permissions to ensure that only trusted roles have access to file upload functionalities. Regularly audit your plugins for security updates. You've got this! Follow these steps, and your WordPress site will be safer in no time! 🛡️