Sanitize post types when adding meta boxes

php/context/class-fieldmanager-context-post.php

@@ -69,7 +69,9 @@ public function __construct( $title, $post_types, $context = 'normal', $priority
 			$post_types = array( $post_types );
 		}
 
-		$this->post_types = $post_types;
+		$this->post_types = array_map( function( $value ) {
+			return is_string( $value ) ? sanitize_key( $value ) : $value;
+		}, $post_types );
 		$this->title = $title;
 		$this->context = $context;
 		$this->priority = $priority;

php/context/class-fieldmanager-context-quickedit.php

@@ -73,14 +73,16 @@ public function __construct( $title, $post_types, $column_display_callback, $col
 			$post_types = array( $post_types );
 		}
 
-		$this->post_types = $post_types;
+		$this->post_types = array_map( function( $value ) {
+			return is_string( $value ) ? sanitize_key( $value ) : $value;
+		}, $post_types );
 		$this->title = $title;
 		$this->column_title = ! empty( $column_title ) ? $column_title : $title;
 		$this->column_display_callback = $column_display_callback;
 		$this->fm = $fm;
 
 		if ( is_callable( $column_display_callback ) ) {
-			foreach ( $post_types as $post_type ) {
+			foreach ( $this->post_types as $post_type ) {
 				add_action( 'manage_' . $post_type . '_posts_columns', array( $this, 'add_custom_columns' ) );
 			}
 			add_action( 'manage_posts_custom_column', array( $this, 'manage_custom_columns' ), 10, 2 );

php/context/class-fieldmanager-context-term.php

@@ -153,6 +153,8 @@ public function __construct( $args, $taxonomies = array(), $show_on_add = true,
 			$this->fm           = $fm;
 		}
 
+		$this->taxonomies = array_map( 'sanitize_key', $this->taxonomies );
+
 		// Iterate through the taxonomies and add the fields to the requested forms.
 		// Also add handlers for saving the fields and which forms to validate (if enabled).
 		foreach ( $this->taxonomies as $taxonomy ) {