The chaps at Virtuemart have issued this security bulliten in response to the vunerability:
http://virtuemart.net/security-bulletins/396-vm-security-bulletin-2011-02-18
Its advised that everyone using Virtuemart 1.1.7 and below, upgrade immediately to 1.1.7a
For customers using our EmailAsUsername plugin, this update will not adversly affect the operation of EmailAsUsername.



