1.13.3
Major security update. Details: http://evocode.com/blog/lemonstand-v1-vulnerability/
If your site has been exploited you must take extra steps outlined in above link.
Your site has been explioted IF
- filesize of /modules/session/resources/images/lemonstand_header.png more than 18 KB
and/or - /modules/shop/classes/shop_paymenttype.php have a reference to lemonstand_header.png?