Several Cross Site Scripting vulnerabilities were found in within Outlook Web Access (OWA) 2003/2007. An attacker can craft a malicious email which will trigger within a user's browser. Different version of OWA and different clients (Light and Premium) have different attack vectors which can result in an attacker gaining *persistent* control over a victim's use of Outlook Web Access. An attacker would have full control and access to the victims e-mail account. This control could be further abused by utilising techniques such as JavaScript root-kits or web worms.

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