my $nick = $cgi->param('nick');
...
my $wpage = $cgi->param('wpage');

my $nick = encode_entities($nick, '<>&"');
...
my $wpage = encode_entities($wpage, '<>&"');

[download]

Not to address any security hole but just to simplify and DRY out the code a bit, you might try one of these untested approaches. 

my ($nick, $pic, $say, $likes, $fav, $car, $age, $town, $drink, $wpage
+)
= map { encode_entities($cgi->param($_), '<>&"') }
qw ( nick   pic   say   likes   fav   car   age   town   drink   wpage
+);

[download]
Or else (and better IMHO): 
use constant CGI_PARAMS => qw(
    nick pic say likes fav car age town drink wpage
    );

my %param =
    map { $_ => encode_entities($_, '<>&"') }
    map { $cgi->param($_) }
    CGI_PARAMS
    ;

...

print $fh <<"EOHTML";
<b>$param{'nick'}</b><br>
<img src='$param{'pic'}' width='250' height='auto' border='2'><br>
<br>
Says <b>$param{'say'}</b><br>
Likes <b>$param{'likes'}</b><br>
Favorite vehicle <b>$param{'fav'}</b><br>
Real life car/vehicle <b>$param{'car'}</b><br>
Age <b>$param{'age'}</b><br>
Hometown <b>$param{'town'}</b><br>
Favorite drink <b>$param{'drink'}</b><br>
<b><a href='$param{'wpage'}'>$param{'wpage'}</a></b>
<HR color=#008000 SIZE=2>
EOHTML

[download]

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: Any security holes? by AnomalousMonk
in thread Any security holes? by Limbomusic

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