diff --git a/wp-admin/export.php b/wp-admin/export.php
index e073a24f29..1955f2b42e 100644
--- a/wp-admin/export.php
+++ b/wp-admin/export.php
@@ -160,7 +160,7 @@ function export_date_options( $post_type = 'post' ) {
 		}
 
 		$month = zeroise( $date->month, 2 );
-		echo '<option value="' . $date->year . '-' . $month . '">' . $wp_locale->get_month( $month ) . ' ' . $date->year . '</option>';
+		echo '<option value="' . esc_attr( $date->year ) . '-' . esc_attr( $month ) . '">' . $wp_locale->get_month( $month ) . ' ' . $date->year . '</option>';
 	}
 }
 ?>
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 9d19d4e3b6..609f2584a0 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56631';
+$wp_version = '6.4-alpha-56632';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.