The browser history feature in Microsoft Internet Explorer 5.5 through 6.0 allows remote attackers to execute arbitrary script as other users and steal authentication information via cookies by injecting JavaScript into the URL, which is executed when the user hits the Back button.
Exploitability
AV:NAC:LAu:NImpact
C:PI:NA:N5/AV:N/AC:L/Au:N/C:P/I:N/A:N