RNN Guestbook contains a flaw that allows a remote cross site scripting attack. This flaw exists because the guestbook.cgi script does not validate eight different variables upon submission. This could allow a user to create a specially crafted URL that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.
Classification
Location:
Remote/Network Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
OSVDB:
Web Related
Solution
Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by disabling all access to the guestbook scripts until a patch or upgrade is made available.