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The Meta Box plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the 'ajax_delete_file' function in all versions up to, and including, 5.11.1. This makes it possible for authenticated attackers, with Contributor-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).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Meta Box Plugin | — | Update meta-box plugin to version 5.11.2, or a newer patched version | Apr 30, 2026 | Mar 6, 2026 |
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