WebKit contains a flaw that allows a universal cross-site scripting (UXSS) attack that exists because the application does not validate username URLs. This may allow an attacker to create a specially crafted request that would execute arbitrary script code in a user's browser within the trust relationship between the browser and another domain.
Loss of Integrity
OSVDB is not currently aware of a solution for this vulnerability.
Upgrade to Apple Safari version 5.1 or 5.0.6 or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
The database information may change without any notice. Use of the information constitutes acceptance for use in an AS IS condition, and there are NO
warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the copyright
holder or distributor (OSVDB or OSF) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.