Ben Schmidt has discovered a vulnerability in the AllWebMenus plugin for WordPress, which can be exploited by malicious people to compromise a vulnerable system.
Input passed via the "abspath" parameter to wp-content/plugins/allwebmenus-wordpress-menu-plugin/actions.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local or external resources.
The vulnerability is confirmed in version 1.1.3. Prior versions may also be affected.