All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'msls_output'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$css_class'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$message'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$json'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$title_format'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$this'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$type'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$item_format'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$blog'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$icon'.

Using exclusionary parameters, like post__not_in, in calls to get_posts() should be done with caution, see https://wpvip.com/documentation/performance-improvements-by-removing-usage-of-post__not_in/ for more information.

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Processing form data without nonce verification.