SECURITY: fix XSS vulnerability

attentionbar.php

@@ -3,7 +3,7 @@
  checkBan();
  $text = isset($_POST['text']) ? $_POST['text'] : '';
  if(strlen($text)>0 && !preg_match('/a href/', $text)) {
-	file_put_contents("attentionbar.txt",$text);
+	file_put_contents("attentionbar.txt",htmlspecialchars($text));
 	 if(strlen($_SERVER['HTTP_REFERER'])>0) { header('Location: ' . $_SERVER['HTTP_REFERER']); }
  	else { header('Location: /'); }
  } else print(file_get_contents("attentionbar.txt"));

js/attention-bar.js

@@ -2,7 +2,7 @@ $(document).ready(function(){
  $("#attention_bar").click(function(eO){ $("#attention_bar").css("display","none");
 	 $("#attention_bar_form").css("display","block"); });
  $.get(configRoot + "attentionbar.txt", function(data) {
-  $("#attention_bar").text(data);
+  $("#attention_bar").html(data);
-  $("#attention_bar_input").val(data);
+  $("#attention_bar_input").val($("#attention_bar").text());
  });
 });