>perl -we"${foo::bar}::baz = 1;"
Bareword found where operator expected at -e line 1, near "${foo::bar}
+::baz"
        (Missing operator before ::baz?)
syntax error at -e line 1, near "${foo::bar}::baz "
Execution of -e aborted due to compilation errors.
[download]

Um, yes, something is going wrong somehow with whatever is emitting that code, which is clearly bogus.
--
A math joke: r = | |csc(θ)|+|sec(θ)|-||csc(θ)|-|sec(θ)|| |
Online Fortune Cookie Search
Office Space merchandise

   ....
   1102       $sender=~s/\b$P{username}(?!@)//ig;
   1103       $sender=~s/\b$P{email}\b//ig if defined $P{email}; 
   1104       map { $sender=~s/\b$_\b//ig } grep { $aliases{$_} eq $P{
+username} } keys %aliases;
   1105       $sender=~s/,\s*,/,/g;          
   1106       $sender=~s/,\s*$//;            
   1107       $sender||=$P{username};        
   ....
[download]

SSF

Sorry, wasn't reading the error closely enough. But could you show the beginning part of your cgi anyway?
--
A math joke: r = | |csc(θ)|+|sec(θ)|-||csc(θ)|-|sec(θ)|| |
Online Fortune Cookie Search
Office Space merchandise

Absolutely, here you go, with minor redaction due to some restrictions from my client:

use strict;
use vars qw/..../;
use Archive::Zip qw/:ERROR_CODES/;
use CGI;
use Data::Alias;
use Date::Calc qw/Day_of_Week Decode_Date_US Decode_Month/;
use Date::Extract;
use Digest::SHA qw/sha1_base64/;
use File::Copy;
use GDBM_File;
use HTML::Defang;
use HTML::Entities;
use Image::Size;
use LWP::MediaTypes qw(guess_media_type read_media_types);
use MIME::Entity;
use MIME::Base64;
use Text::Metaphone;
use Time::HiRes qw/time/;  

BEGIN {
   $|=1;
....
   %dispatch=(
      'edit'    => \&do_edit,    
      'save'    => \&do_save,    
      'undo'    => \&do_undo,    
      'prior'   => \&do_prior,   
      'next'    => \&do_next,    
      'read'    => \&do_read,    
       ....
   };
}

$query=new CGI;
%cookie=$query->cookie('app');
%P=();
for $key ($query->param) {
   $value=encode_entities($query->param($key),'\x80-\xFF');
   $P{$key}=$value;
}
....
[download]

HTH,
SSF