The Photo Gallery by 10Web – Mobile-Friendly Image Gallery plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.8.19 via the rename_item function. This makes it possible for authenticated attackers to rename arbitrary files on the server. This can lead to site takeovers if the wp-config.php file of a site can be renamed. By default this can be exploited by administrators only. In the premium version of the plugin, administrators can give gallery management permissions to lower level users, which might make this exploitable by users as low as contributors.