From 5a79e2a809759f89f5ffedd92c66394ee1735ec5 Mon Sep 17 00:00:00 2001
From: Mike Jolley <mike.jolley@me.com>
Date: Tue, 11 Feb 2014 13:38:53 +0000
Subject: [PATCH] verify_nonce should check if variable isset(). Closes #4704

---
 woocommerce.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/woocommerce.php b/woocommerce.php
index 8b15d7590f9..5830cfd6190 100644
--- a/woocommerce.php
+++ b/woocommerce.php
@@ -696,6 +696,9 @@ final class WooCommerce {
 	 */
 	public function verify_nonce( $action, $method = '_POST', $error_message = false ) {
 		_deprecated_function( 'Woocommerce->verify_nonce', '2.1', 'wp_verify_nonce' );
+		if ( ! isset( $method[ '_wpnonce' ] ) ) {
+			return false;
+		}
 		return wp_verify_nonce( $method[ '_wpnonce' ], 'woocommerce-' . $action );
 	}