diff --git a/src/wp-includes/post.php b/src/wp-includes/post.php
index a26efec2a8..52600b847e 100644
--- a/src/wp-includes/post.php
+++ b/src/wp-includes/post.php
@@ -3127,11 +3127,25 @@ function wp_insert_post( $postarr, $wp_error = false ) {
 
 	$user_id = get_current_user_id();
 
-	$defaults = array('post_status' => 'draft', 'post_type' => 'post', 'post_author' => $user_id,
-		'ping_status' => get_option('default_ping_status'), 'post_parent' => 0,
-		'menu_order' => 0, 'to_ping' =>  '', 'pinged' => '', 'post_password' => '',
-		'guid' => '', 'post_content_filtered' => '', 'post_excerpt' => '', 'import_id' => 0,
-		'post_content' => '', 'post_title' => '', 'context' => '');
+	$defaults = array(
+		'post_author' => $user_id,
+		'post_content' => '',
+		'post_content_filtered' => '',
+		'post_title' => '',
+		'post_excerpt' => '',
+		'post_status' => 'draft',
+		'post_type' => 'post',
+		'comment_status' => '',
+		'ping_status' => '',
+		'post_password' => '',
+		'to_ping' =>  '',
+		'pinged' => '',
+		'post_parent' => 0,
+		'menu_order' => 0,
+		'guid' => '',
+		'import_id' => 0,
+		'context' => '',
+	);
 
 	$postarr = wp_parse_args($postarr, $defaults);
 
@@ -3302,11 +3316,12 @@ function wp_insert_post( $postarr, $wp_error = false ) {
 		}
 	}
 
+	// Comment status.
 	if ( empty( $postarr['comment_status'] ) ) {
 		if ( $update ) {
 			$comment_status = 'closed';
 		} else {
-			$comment_status = get_option('default_comment_status');
+			$comment_status = get_default_comment_status( $post_type );
 		}
 	} else {
 		$comment_status = $postarr['comment_status'];
@@ -3315,7 +3330,7 @@ function wp_insert_post( $postarr, $wp_error = false ) {
 	// These variables are needed by compact() later.
 	$post_content_filtered = $postarr['post_content_filtered'];
 	$post_author = empty( $postarr['post_author'] ) ? $user_id : $postarr['post_author'];
-	$ping_status = empty( $postarr['ping_status'] ) ? get_option( 'default_ping_status' ) : $postarr['ping_status'];
+	$ping_status = empty( $postarr['ping_status'] ) ? get_default_comment_status( $post_type, 'pingback' ) : $postarr['ping_status'];
 	$to_ping = isset( $postarr['to_ping'] ) ? sanitize_trackback_urls( $postarr['to_ping'] ) : '';
 	$pinged = isset( $postarr['pinged'] ) ? $postarr['pinged'] : '';
 	$import_id = isset( $postarr['import_id'] ) ? $postarr['import_id'] : 0;
@@ -4056,9 +4071,51 @@ function wp_transition_post_status( $new_status, $old_status, $post ) {
 }
 
 //
-// Trackback and ping functions
+// Comment, trackback, and pingback functions.
 //
 
+/**
+ * Get the default comment status for a post type.
+ *
+ * @since 4.3.0
+ *
+ * @param  string $post_type    Optional. Post type. Default 'post'.
+ * @param  string $comment_type Optional. Comment type. Default 'comment'.
+ * @return string Expected return value is 'open' or 'closed'.
+ */
+function get_default_comment_status( $post_type = 'post', $comment_type = 'comment' ) {
+	switch ( $comment_type ) {
+		case 'pingback' :
+		case 'trackback' :
+			$supports = 'trackbacks';
+			$option = 'ping';
+			break;
+		default :
+			$supports = 'comments';
+			$option = 'comment';
+	}
+
+	// Set the status.
+	if ( 'page' === $post_type ) {
+		$status = 'closed';
+	} elseif ( post_type_supports( $post_type, $supports ) ) {
+		$status = get_option( "default_{$option}_status" );
+	} else {
+		$status = 'closed';
+	}
+
+	/**
+	 * Filter the default comment status for the given post type.
+	 *
+	 * @since 4.3.0
+	 *
+	 * @param string $status       Default status for the given post type,
+	 *                             either 'open' or 'closed'.
+	 * @param string $comment_type Type of comment. Default is `comment`.
+	 */
+	return apply_filters( "get_{$post_type}_default_comment_status", $status, $comment_type );
+}
+
 /**
  * Add a URL to those already pinged.
  *
diff --git a/tests/phpunit/tests/post.php b/tests/phpunit/tests/post.php
index 2c80735b80..86810b9a38 100644
--- a/tests/phpunit/tests/post.php
+++ b/tests/phpunit/tests/post.php
@@ -950,4 +950,77 @@ class Tests_Post extends WP_UnitTestCase {
 			$this->assertEquals( $value, $post->$field );
 		}
 	}
+
+	/**
+	 * @ticket 31168
+	 */
+	function test_wp_insert_post_default_comment_ping_status_open() {
+		$post_id = $this->factory->post->create( array(
+			'post_author' => $this->author_id,
+			'post_status' => 'public',
+			'post_content' => rand_str(),
+			'post_title' => rand_str(),
+		) );
+		$post = get_post( $post_id );
+
+		$this->assertEquals( 'open', $post->comment_status );
+		$this->assertEquals( 'open', $post->ping_status );
+	}
+
+	/**
+	 * @ticket 31168
+	 */
+	function test_wp_insert_post_page_default_comment_ping_status_closed() {
+		$post_id = $this->factory->post->create( array(
+			'post_author' => $this->author_id,
+			'post_status' => 'public',
+			'post_content' => rand_str(),
+			'post_title' => rand_str(),
+			'post_type' => 'page',
+		) );
+		$post = get_post( $post_id );
+
+		$this->assertEquals( 'closed', $post->comment_status );
+		$this->assertEquals( 'closed', $post->ping_status );
+	}
+
+	/**
+	 * @ticket 31168
+	 */
+	function test_wp_insert_post_cpt_default_comment_ping_status_open() {
+		$post_type = rand_str(20);
+		register_post_type( $post_type, array( 'supports' => array( 'comments', 'trackbacks' ) ) );
+		$post_id = $this->factory->post->create( array(
+			'post_author' => $this->author_id,
+			'post_status' => 'public',
+			'post_content' => rand_str(),
+			'post_title' => rand_str(),
+			'post_type' => $post_type,
+		) );
+		$post = get_post( $post_id );
+
+		$this->assertEquals( 'open', $post->comment_status );
+		$this->assertEquals( 'open', $post->ping_status );
+		_unregister_post_type( $post_type );
+	}
+
+	/**
+	 * @ticket 31168
+	 */
+	function test_wp_insert_post_cpt_default_comment_ping_status_closed() {
+		$post_type = rand_str(20);
+		register_post_type( $post_type );
+		$post_id = $this->factory->post->create( array(
+			'post_author' => $this->author_id,
+			'post_status' => 'public',
+			'post_content' => rand_str(),
+			'post_title' => rand_str(),
+			'post_type' => $post_type,
+		) );
+		$post = get_post( $post_id );
+
+		$this->assertEquals( 'closed', $post->comment_status );
+		$this->assertEquals( 'closed', $post->ping_status );
+		_unregister_post_type( $post_type );
+	}
 }