Post Status Notifier Lite < 1.13.0 - Reflected XSS via mod Parameter

The Post Status Notifier Lite WordPress plugin before 1.13.0 does not properly escape the mod URL parameter before reflecting it into the admin settings page (admin.php?page=post-status-notifier-lite), leading to a Reflected Cross-Site Scripting vulnerability that fires in the administrator's session when they are tricked into following a crafted URL.