Quote the variable we're interpolating into the regex

lib/smradius/util.pm

@@ -86,8 +86,9 @@ sub templateReplace
 
 	# Replace blanks
 	while (my ($entireMacro,$section,$item,$default) = ($string =~ /(\%\{([a-z]+)\.([a-z0-9\-]+)(?:=([^\}]*))?\})/i )) {
-		# Replace macro with ?
-		$string =~ s/$entireMacro/$placeholder/;
+		# Replace macro with ? or the placeholder if specified
+		# We also quote the entireMacro
+		$string =~ s/\Q$entireMacro\E/$placeholder/;
 
 		# Get value to substitute
 		my $value = (defined($hashref->{$section}) && defined($hashref->{$section}->{$item})) ?