The Shortcodes and extra features for Phlox theme WordPress plugin before 2.10.7 unserializes the content of an imported file, which could lead to PHP object injection when a user imports (intentionally or not) a malicious file and a suitable gadget chain is present on the blog.
The Shortcodes and extra features for Phlox WordPress plugin before 2.9.8 does not sanitise and escape a parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting
The Master Slider plugin 3.2.7 and 3.5.1 for WordPress has XSS via the wp-admin/admin-ajax.php Name input field of the MSPanel.Settings value on Callback.