Ticket #41083: 41083.0.diff

src/wp-admin/includes/class-wp-community-events.php

@@ -257 +257 @@
                                  * trusted for authenticity, but we don't need to for this purpose.
                                  */
                                 $address_chain = explode( ',', $_SERVER[ $header ] );
-                                $client_ip     = trim( $address_chain[0] );
+                                $client_ip     = trim( $address_chain[0] ) . ':';
+
+                                // Strip port from IP so it can be used with inet_ functions.
+                                $client_ip     = substr($client_ip, 0, strpos($client_ip, ":"));
 
                                 break;
                         }