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The Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX plugin for WordPress is vulnerable to unauthorized plugin installation/activation due to a missing capability check on the 'install_required_plugin_callback' function in all versions up to, and including, 4.1.16. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ultimate Post Plugin | — | Update ultimate-post plugin to version 4.1.17, or a newer patched version | May 15, 2025 | Nov 15, 2024 |
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