Mambo Site Server has been reported prone to a cross-site scripting vulnerability.
It has been reported that certain user supplied URI parameters are not sufficiently sanitized by the Mambo Site Server. As a result of this deficiency an attacker may create a specially crafted URL that includes malicious HTML code passed to the index page used by Mambo Site server.
This may allow for theft of cookie-based authentication credentials and other attacks.
This vulnerability was reported to affect Mambo Site Server version 4.0.10 it is not currently known if other versions are affected.
Mambo contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate 'option' variables upon submission to the 'index.php' script. 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.
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.