The Catch Breadcrumb plugin before 1.5.4 for WordPress allows Reflected XSS via the s parameter (a search query). Also affected are 16 themes (if the plugin is enabled) by the same author: Alchemist and Alchemist PRO, Izabel and Izabel PRO, Chique and Chique PRO, Clean Enterprise and Clean Enterprise PRO, Bold Photography PRO, Intuitive PRO, Devotepress PRO, Clean Blocks PRO, Foodoholic PRO, Catch Mag PRO, Catch Wedding PRO, and Higher Education PRO.

Multiple Plugins from the CatchThemes vendor do not perform capability and CSRF checks in the ctp_switch AJAX action, which could allow any authenticated users, such as Subscriber to change the Essential Widgets WordPress plugin before 1.9, To Top WordPress plugin before 2.3, Header Enhancement WordPress plugin before 1.5, Generate Child Theme WordPress plugin before 1.6, Essential Content Types WordPress plugin before 1.9, Catch Web Tools WordPress plugin before 2.7, Catch Under Construction WordPress plugin before 1.4, Catch Themes Demo Import WordPress plugin before 1.6, Catch Sticky Menu WordPress plugin before 1.7, Catch Scroll Progress Bar WordPress plugin before 1.6, Social Gallery and Widget WordPress plugin before 2.3, Catch Infinite Scroll WordPress plugin before 1.9, Catch Import Export WordPress plugin before 1.9, Catch Gallery WordPress plugin before 1.7, Catch Duplicate Switcher WordPress plugin before 1.6, Catch Breadcrumb WordPress plugin before 1.7, Catch IDs WordPress plugin before 2.4's configurations.

The Catch Themes Demo Import WordPress plugin is vulnerable to arbitrary file uploads via the import functionality found in the ~/inc/CatchThemesDemoImport.php file, in versions up to and including 1.7, due to insufficient file type validation. This makes it possible for an attacker with administrative privileges to upload malicious files that can be used to achieve remote code execution.

The Catch Themes Demo Import WordPress plugin before 2.1.1 does not validate one of the file to be imported, which could allow high privivilege admin to upload an arbitrary PHP file and gain RCE even in the case of an hardened blog (ie DISALLOW_UNFILTERED_HTML, DISALLOW_FILE_EDIT and DISALLOW_FILE_MODS constants set to true)