SharePoint Improper Input Validation Vulnerability - CVE-2013-0081
Microsoft SharePoint Portal Server 2003 SP3 and SharePoint Server 2007 SP3 2010 SP1 and SP2 and 2013 do not properly process unassigned workflows which allows remote attackers to cause a denial of service (W3WP process hang) via a crafted URL aka quotSharePoint Denial of Service Vulnerability.quot