coppermine -- IP spoofing and XSS vulnerability

GHC team reports about coppermine

The lack of sanitizing of user defined variables may
result in undesirable consequences such as IP spoofing
or XSS attack.
Generally users of Coppermine Gallery can post comments.
Remote address & x-forwarded-for variables are logged
for admin’s eyes. X-Forwarded-for variable does not pass
throu any filtration before logging into database. User
can define/redefine this variable.