Unspecified vulnerability in LoginToboggan 6.x-1.x before 6.x-1.5, a module for Drupal, when "Allow users to login using their e-mail address" is enabled, allows remote blocked users to bypass intended access restrictions via unspecified vectors.

More... (http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-2291)