If you have many modules with such data (really password in modules? I'm sure you are aware already of this..) I'd consider a radical change: parse everything with PPI and produce many distinct modules with a lonely accessor, or better put everything in a db.. anyway..

cat Varz.pm

package Varz;

use Exporter;
our @EXPORT = ( $User, $Password, $Url, $Prefix );

our $User     = 'Joe';
our $Password = 'Secret123';

our $Url    = 'www.example.com';
our $Prefix = 'EX';

1;
[download]

You can just copying vaules from one package to your current one as in:

perl -Mstrict -MVarz -we "our($User, $Password, $Url, $Prefix); map{ $
+main::{$_} = $Varz::{$_} } keys %Varz:: ;  print join qq(\n),$User, $
+Password, $Url, $Prefix"

Joe
Secret123
www.example.com
EX
[download]

If you want to get a bit mad about symbol table, I recently moved my library

L*

PS you may want to grep out unwanted elements: grep{$_ !~/export|begin/i}keys %Varz::