data/class/helper/SC_Helper_Address.php in the front-features implementation in LOCKON EC-CUBE 2.12.3 through 2.13.0 allows remote authenticated users to obtain sensitive information via unspecified vectors related to addresses.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-5825
http://www.ec-cube.net/info/weakness/weakness.php?id=51
http://svn.ec-cube.net/open_trac/changeset/23274