[原文]Cross-site scripting (XSS) vulnerability in message.php in Chatness 2.5.1 and earlier allows remote attackers to inject arbitrary web script or HTML via (1) the user field or (2) the message parameter to message.php.
Chatness contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate the 'user' variable upon submission to the message.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.