escape html in syndication targets

views/new-post.php

@@ -44,9 +44,9 @@
               echo '<ul>';
               foreach($this->syndication_targets as $syn) {
                 echo '<li>'
-                 . '<button data-syndicate-to="'.(isset($syn['uid']) ? $syn['uid'] : $syn['target']).'" class="btn btn-default btn-block">'
-                   . ($syn['favicon'] ? '<img src="'.$syn['favicon'].'" width="16" height="16"> ' : '')
-                   . $syn['target']
+                 . '<button data-syndicate-to="'.(isset($syn['uid']) ? htmlspecialchars($syn['uid']) : htmlspecialchars($syn['target'])).'" class="btn btn-default btn-block">'
+                   . ($syn['favicon'] ? '<img src="'.htmlspecialchars($syn['favicon']).'" width="16" height="16"> ' : '')
+                   . htmlspecialchars($syn['target'])
                  . '</button>'
                . '</li>';
               }

views/partials/syndication-js.php

@@ -7,7 +7,7 @@ function reload_syndications() {
         var target = data.targets[i].target;
         var uid = data.targets[i].uid;
         var favicon = data.targets[i].favicon;
-        $("#syndication-container ul").append('<li><button data-syndicate-to="'+(uid ? uid : target)+'" class="btn btn-default btn-block">'+(favicon ? '<img src="'+favicon+'" width="16" height="16"> ':'')+target+'</button></li>');
+        $("#syndication-container ul").append('<li><button data-syndicate-to="'+htmlspecialchars(uid ? uid : target)+'" class="btn btn-default btn-block">'+(favicon ? '<img src="'+htmlspecialchars(favicon)+'" width="16" height="16"> ':'')+htmlspecialchars(target)+'</button></li>');
       }
       bind_syndication_buttons();
     } else {