It has been reported that the Mldonkey web interface is prone to cross-site scripting attacks when reporting errors. The problem occurs due to insufficient sanitization of script code within requests. This could potentially allow an attacker to carry out a variety of attacks on a user.
MLdonkey for Mac OS X, Unix and Linux contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate user input variables upon submission of an incoming request. 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.