Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
wpxpo Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX
Default version status: unaffected
0 to ≤ 4.1.16affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/076f36fb-c2fb-43e0-a027-1351d3995489?source=cve ↗
- https://plugins.trac.wordpress.org/browser/ultimate-post/tags/4.1.16/classes/Importer.php#L94 ↗
- https://plugins.trac.wordpress.org/browser/ultimate-post/tags/4.1.16/classes/Initialization.php#L330 ↗
- https://wordpress.org/plugins/ultimate-post/ ↗
- https://plugins.trac.wordpress.org/changeset/3188636/ultimate-post/trunk/classes/Importer.php ↗