diff --git a/assets/webconfig/js/content_effectsconfigurator.js b/assets/webconfig/js/content_effectsconfigurator.js
index 3c774ce1..74dc16c2 100644
--- a/assets/webconfig/js/content_effectsconfigurator.js
+++ b/assets/webconfig/js/content_effectsconfigurator.js
@@ -1,8 +1,8 @@
 $(document).ready(function () {
   performTranslation();
 
-	// update instance listing
-	updateHyperionInstanceListing();
+  // update instance listing
+  updateHyperionInstanceListing();
 
   var oldDelList = [];
   var effectName = "";
@@ -120,7 +120,7 @@ $(document).ready(function () {
 
   // disable or enable control elements
   $("#name-input").on('change keyup', function (event) {
-    effectName = $(this).val();
+    effectName = encodeHTML($(this).val());
     if ($(this).val() == '') {
       effects_editor.disable();
       $("#eff_footer").children().attr('disabled', true);
diff --git a/assets/webconfig/js/content_general.js b/assets/webconfig/js/content_general.js
index c8f68d5d..da972ba6 100644
--- a/assets/webconfig/js/content_general.js
+++ b/assets/webconfig/js/content_general.js
@@ -37,7 +37,7 @@ $(document).ready(function () {
     showInfoDialog('renInst', $.i18n('conf_general_inst_renreq_t'), getInstanceNameByIndex(inst));
 
     $("#id_btn_ok").off().on('click', function () {
-      requestInstanceRename(inst, $('#renInst_name').val())
+      requestInstanceRename(inst, encodeHTML($('#renInst_name').val()))
     });
 
     $('#renInst_name').off().on('input', function (e) {
@@ -94,7 +94,7 @@ $(document).ready(function () {
   });
 
   $('#btn_create_inst').off().on('click', function (e) {
-    requestInstanceCreate($('#inst_name').val());
+    requestInstanceCreate(encodeHTML($('#inst_name').val()));
     $('#inst_name').val("");
     $('#btn_create_inst').attr('disabled', true)
   });
diff --git a/assets/webconfig/js/content_logging.js b/assets/webconfig/js/content_logging.js
index 6acd7677..39876984 100644
--- a/assets/webconfig/js/content_logging.js
+++ b/assets/webconfig/js/content_logging.js
@@ -125,7 +125,7 @@ $(document).ready(function () {
         var function_ = messages[idx].function;
         var line = messages[idx].line;
         var file_name = messages[idx].fileName;
-        var msg = messages[idx].message;
+        var msg = encodeHTML(messages[idx].message);
         var level_string = messages[idx].levelString;
         var utime = messages[idx].utime;
 
diff --git a/assets/webconfig/js/content_network.js b/assets/webconfig/js/content_network.js
index 46284d11..8397a01c 100644
--- a/assets/webconfig/js/content_network.js
+++ b/assets/webconfig/js/content_network.js
@@ -210,7 +210,7 @@ $(document).ready( function() {
 	}
 
 	$('#btn_create_tok').off().on('click',function() {
-		requestToken($('#tok_comment').val())
+    requestToken(encodeHTML($('#tok_comment').val()))
 		$('#tok_comment').val("")
 		$('#btn_create_tok').attr('disabled', true)
 	});
diff --git a/assets/webconfig/js/ui_utils.js b/assets/webconfig/js/ui_utils.js
index f8f46844..76a0d160 100644
--- a/assets/webconfig/js/ui_utils.js
+++ b/assets/webconfig/js/ui_utils.js
@@ -1206,3 +1206,7 @@ function showInputOptionsForKey(editor, item, showForKeys, state) {
   }
   showInputOptions(item, elements, state);
 }
+
+function encodeHTML(s) {
+  return s.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/"/g, '&quot;');
+}