diff --git a/frontend/src/modules/scaffold/backboneFormsOverrides.js b/frontend/src/modules/scaffold/backboneFormsOverrides.js
index 0c091bed8e..2485ea1093 100644
--- a/frontend/src/modules/scaffold/backboneFormsOverrides.js
+++ b/frontend/src/modules/scaffold/backboneFormsOverrides.js
@@ -84,13 +84,31 @@ define([
       };
     }
 
-    until(isAttached(this.$el)).then(function() {
-      this.editor = CKEDITOR.replace(this.$el[0], {
+    function convertStringsToRegExDeep (arr) {
+      function processEntry ([key, value]) {
+        value = (typeof value === "string")
+          ? new RegExp(value, 'i')
+          : Array.isArray(value)
+            ? arr.map((value, index) => processEntry([index, value])[1])
+            : (typeof value === "object" && value !== null)
+              ? Object.fromEntries(Object.entries(value).map(processEntry))
+              : value;
+        return [key, value];
+      }
+      return arr.map((value, index) => processEntry([index, value])[1])
+    }
+
+    until(isAttached(this.$el)).then(() => {
+      return CKEDITOR.create(this.$el[0], {
         dataIndentationChars: '',
         disableNativeSpellChecker: false,
         enterMode: CKEDITOR[Origin.constants.ckEditorEnterMode],
         entities: false,
-        extraAllowedContent: Origin.constants.ckEditorExtraAllowedContent,
+        htmlSupport: {
+          // Convert all allow/disallow strings to regexp, as config is json only
+          allow: convertStringsToRegExDeep((Origin.constants.ckEditorHtmlSupport && Origin.constants.ckEditorHtmlSupport.allow) || []),
+          disallow: convertStringsToRegExDeep((Origin.constants.ckEditorHtmlSupport && Origin.constants.ckEditorHtmlSupport.disallow) || [])
+        },
         on: {
           change: function() {
             this.trigger('change', this);
@@ -112,24 +130,50 @@ define([
             elements.forEach(function(element) { writer.setRules(element, rules); });
           }
         },
-        toolbar: [
-          { name: 'document', groups: [ 'mode', 'document', 'doctools' ], items: [ 'Source', '-', 'ShowBlocks' ] },
-          { name: 'clipboard', groups: [ 'clipboard', 'undo' ], items: [ 'PasteText', 'PasteFromWord', '-', 'Undo', 'Redo' ] },
-          { name: 'editing', groups: [ 'find', 'selection', 'spellchecker' ], items: [ 'Find', 'Replace', '-', 'SelectAll' ] },
-          { name: 'paragraph', groups: [ 'list', 'indent', 'blocks', 'align', 'bidi' ], items: [ 'NumberedList', 'BulletedList', '-', 'Outdent', 'Indent', '-', 'Blockquote', 'CreateDiv' ] },
-          { name: 'direction', items: [ 'BidiLtr', 'BidiRtl' ] },
-          '/',
-          { name: 'basicstyles', groups: [ 'basicstyles', 'cleanup' ], items: [ 'Bold', 'Italic', 'Underline', 'Strike', 'Subscript', 'Superscript', '-', 'RemoveFormat'] },
-          { name: 'styles', items: [ 'JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock' ] },
-          { name: 'links', items: [ 'Link', 'Unlink' ] },
-          { name: 'colors', items: [ 'TextColor', 'BGColor' ] },
-          { name: 'insert', items: [ 'SpecialChar', 'Table' ] },
-          { name: 'tools', items: [] },
-          { name: 'others', items: [ '-' ] }
-        ]
-      });
-    }.bind(this));
-
+        plugins: window.CKEDITOR.pluginsConfig,
+        toolbar: {
+          items: [
+            'sourceEditing',
+            'showBlocks',
+            'undo',
+            'redo',
+            '|',
+            'findAndReplace',
+            'selectAll',
+            '|',
+            'numberedList',
+            'bulletedList',
+            'blockQuote',
+            'indent',
+            'outdent',
+            '|',
+            'bold',
+            'italic',
+            'underline',
+            'strikethrough',
+            'subscript',
+            'superscript',
+            'alignment',
+            'removeFormat',
+            '|',
+            'link',
+            'fontColor',
+            'fontBackgroundColor',
+            '|',
+            'specialCharacters',
+            'insertTable'
+          ],
+          shouldNotGroupWhenFull: true
+        }
+      }).then(editor => {
+        this.editor = editor
+        CKEDITOR.instances = CKEDITOR.instances || []
+        CKEDITOR.instances.length = CKEDITOR.instances.length || 0;
+        this.editor.id = CKEDITOR.instances.length
+        CKEDITOR.instances.length++;
+        CKEDITOR.instances[this.editor.id] = this.editor
+      })
+    });
     return this;
   };
 
@@ -149,8 +193,8 @@ define([
 
   // ckeditor removal
   Backbone.Form.editors.TextArea.prototype.remove = function() {
-    this.editor.removeAllListeners();
-    CKEDITOR.remove(this.editor);
+    this.editor.stopListening()
+    delete CKEDITOR.instances[this.editor.id]
   };
 
   // add override to allow prevention of validation
diff --git a/frontend/src/modules/scaffold/less/textArea.less b/frontend/src/modules/scaffold/less/textArea.less
index 1307e80f65..0814f88e28 100644
--- a/frontend/src/modules/scaffold/less/textArea.less
+++ b/frontend/src/modules/scaffold/less/textArea.less
@@ -1,26 +1,9 @@
 .field-editor {
-  .cke_chrome {
-    border-color: #ccc;
-    border-radius: 2px;
-    overflow: hidden;
-    box-shadow: none;
-    width: 93%;
-  }
-
-  .cke_top {
-    background: #eee;
-    border-color: #ccc;
-    box-shadow: none;
-  }
-
-  .cke_bottom {
-    background: @white;
-    border-color: #ccc;
-  }
+  .ck.ck-editor {
+    width: 93% !important;
 
-  .cke_toolgroup {
-    background-image: none;
-    background: @white;
-    border-color: #ccc;
+    .ck.ck-content {
+      min-height: 200px !important;
+    }
   }
 }
diff --git a/lib/configuration.js b/lib/configuration.js
index c4554b1258..03f039d3d8 100644
--- a/lib/configuration.js
+++ b/lib/configuration.js
@@ -32,7 +32,7 @@ var ALLOWED_CLIENT_SIDE_KEYS = [
   'useSmtp',
   'isProduction',
   'maxLoginAttempts',
-  'ckEditorExtraAllowedContent',
+  'ckEditorHtmlSupport',
   'ckEditorEnterMode',
   'maxFileUploadSize',
   'supportLink',
@@ -81,7 +81,20 @@ function Configuration() {
   this.conf = {
     root: this.serverRoot,
     maxLoginAttempts: 3,
-    ckEditorExtraAllowedContent: 'span(*)',
+    ckEditorHtmlSupport: {
+      allow: [{
+        name: "^(blockquote|ul|ol|span)$"
+      },{
+        name: ".*",
+        classes: true,
+        styles: true
+      },{
+        name: "^a$",
+        attributes: {
+          target: true
+        }
+      }]
+    },
     maxFileUploadSize: '200MB',
     ckEditorEnterMode: 'ENTER_P'
   };
diff --git a/routes/index/index.hbs b/routes/index/index.hbs
index 2ebbecf0c6..ec9764b98c 100644
--- a/routes/index/index.hbs
+++ b/routes/index/index.hbs
@@ -6,7 +6,7 @@
     <link rel="stylesheet" href="css/adapt.css" />
     <link rel="stylesheet" href="font-awesome-4.5.0/css/font-awesome.min.css">
     <script type="text/javascript" src="modernizr.js"></script>
-    <script src="//cdn.ckeditor.com/4.17.0/full-all/ckeditor.js"></script>
+		<link rel="stylesheet" href="https://cdn.ckeditor.com/ckeditor5/42.0.0/ckeditor5.css">
     {{#if isProduction}}
       <script type="text/javascript" src="require.js" data-main="js/origin.js{{#if dateStampAsString}}?{{dateStampAsString}}{{/if}}"></script>
     {{else}}
@@ -47,5 +47,106 @@
         </div>
       </div>
     </div>
+    <script type="importmap">
+			{
+				"imports": {
+					"ckeditor5": "https://cdn.ckeditor.com/ckeditor5/42.0.0/ckeditor5.js",
+					"ckeditor5/": "https://cdn.ckeditor.com/ckeditor5/42.0.0/"
+				}
+			}
+		</script>
+    <script type="module">
+      import {
+        ClassicEditor,
+        Alignment,
+        Autoformat,
+        AutoLink,
+        Autosave,
+        BalloonToolbar,
+        BlockQuote,
+        BlockToolbar,
+        Bold,
+        Clipboard,
+        Code,
+        Essentials,
+        FindAndReplace,
+        GeneralHtmlSupport,
+        Font,
+        Highlight,
+        Indent,
+        IndentBlock,
+        Italic,
+        Link,
+        List,
+        ListProperties,
+        Paragraph,
+        SelectAll,
+        ShowBlocks,
+        SourceEditing,
+        SpecialCharacters,
+        SpecialCharactersArrows,
+        SpecialCharactersCurrency,
+        SpecialCharactersEssentials,
+        SpecialCharactersLatin,
+        SpecialCharactersMathematical,
+        SpecialCharactersText,
+        Strikethrough,
+        Subscript,
+        Superscript,
+        Table,
+        TableCellProperties,
+        TableProperties,
+        TableToolbar,
+        TextTransformation,
+        Underline,
+        Undo
+      } from 'ckeditor5';
+      
+      window.CKEDITOR = ClassicEditor
+      window.CKEDITOR.pluginsConfig = [
+        Alignment,
+        Autoformat,
+        AutoLink,
+        Autosave,
+        BalloonToolbar,
+        BlockQuote,
+        BlockToolbar,
+        Bold,
+        Clipboard,
+        Code,
+        Essentials,
+        FindAndReplace,
+        GeneralHtmlSupport,
+        Font,
+        Highlight,
+        Indent,
+        IndentBlock,
+        Italic,
+        Link,
+        List,
+        ListProperties,
+        Paragraph,
+        SelectAll,
+        ShowBlocks,
+        SourceEditing,
+        SpecialCharacters,
+        SpecialCharactersArrows,
+        SpecialCharactersCurrency,
+        SpecialCharactersEssentials,
+        SpecialCharactersLatin,
+        SpecialCharactersMathematical,
+        SpecialCharactersText,
+        Strikethrough,
+        Subscript,
+        Superscript,
+        Table,
+        TableCellProperties,
+        TableProperties,
+        TableToolbar,
+        TextTransformation,
+        Underline,
+        Undo
+      ];
+    </script>
   </body>
 </html>