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Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$all_sizes".

Processing form data without nonce verification.

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

Detected usage of a non-sanitized input variable: $_FILES['wpua-file']

$_GET['deleted'] not unslashed before sanitization. Use wp_unslash() or similar

PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "admin_enqueue_scripts".

Processing form data without nonce verification.

Detected usage of a possibly undefined superglobal array index: $_SERVER['REQUEST_URI']. Check that the array index exists before using it.

Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "get_wp_user_avatar".

A function call to __() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

Simple placeholders should not be quoted in the query string in $wpdb->prepare(). Found: '%s'.

Use of a direct database call is discouraged.

Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

Resource version not set in call to wp_enqueue_script(). This means new versions of the script may not always be loaded due to browser caching.

Function "get_avatar_url()" requires WordPress 4.2.0, but your plugin minimum supported version is WordPress 4.0.0.

Sanitization missing for register_setting().

Detected usage of meta_query, possible slow query.

date() is affected by runtime timezone changes which can cause date/time to be incorrectly displayed. Use gmdate() instead.

wp_reset_query() is discouraged. Use wp_reset_postdata() instead.

In footer ($in_footer) is not set explicitly wp_enqueue_script; It is recommended to load scripts in the footer. Please set this value to `true` to load it in the footer, or explicitly `false` if it should be loaded in the header.

Missing $domain parameter in function call to __().

wp_redirect() found. Using wp_safe_redirect(), along with the "allowed_redirect_hosts" filter if needed, can help avoid any chances of malicious redirects within code. It is also important to remember to call exit() after a redirect so that no other unwanted code is executed.

Unescaped parameter $post_status used in $wpdb->get_var()

Use placeholders and $wpdb->prepare(); found $post_status