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Ajax: Sanitize dashboard widget AJAX request parameters. #12375

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Ajax: Sanitize dashboard widget AJAX request parameters. #12375

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11 changes: 9 additions & 2 deletions src/wp-admin/includes/ajax-actions.php
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Original file line number Diff line number Diff line change
Expand Up @@ -420,12 +420,19 @@ function wp_ajax_get_community_events() {
function wp_ajax_dashboard_widgets() {
require_once ABSPATH . 'wp-admin/includes/dashboard.php';

$pagenow = $_GET['pagenow'];
$pagenow = isset( $_GET['pagenow'] )
? sanitize_key( wp_unslash( $_GET['pagenow'] ) )
: '';

if ( 'dashboard-user' === $pagenow || 'dashboard-network' === $pagenow || 'dashboard' === $pagenow ) {
set_current_screen( $pagenow );
}

switch ( $_GET['widget'] ) {
$widget = isset( $_GET['widget'] )
? sanitize_key( wp_unslash( $_GET['widget'] ) )
: '';

switch ( $widget ) {
case 'dashboard_primary':
wp_dashboard_primary();
break;
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