diff --git a/src/components/Form/fields/FieldRichText.vue b/src/components/Form/fields/FieldRichText.vue
index 40ccd76f2..2d3938bb6 100644
--- a/src/components/Form/fields/FieldRichText.vue
+++ b/src/components/Form/fields/FieldRichText.vue
@@ -10,6 +10,7 @@ export default {
 			type: String,
 			required: true,
 		},
+
 		/** Must be `oneline`. */
 		size: {
 			type: String,
@@ -20,6 +21,24 @@ export default {
 				return ['oneline'].includes(value);
 			},
 		},
+
+		// @see 5.0+ : https://www.tiny.cloud/docs/configure/content-filtering/#invalid_elements
+		// @see 6.0+ : https://www.tiny.cloud/docs/tinymce/latest/content-filtering/#invalid_elements
+		invalidElements: {
+			type: String,
+			default() {
+				return 'em,strong,br';
+			},
+		},
+
+		// @see 5.0+ : https://www.tiny.cloud/docs/configure/content-filtering/#valid_elements
+		// @see 6.0+ : https://www.tiny.cloud/docs/tinymce/latest/content-filtering/#valid_elements
+		validElements: {
+			type: String,
+			default() {
+				return 'b,i,u,sup,sub';
+			},
+		},
 	},
 	computed: {
 		/**
@@ -58,14 +77,10 @@ export default {
 						subscript: [{inline: 'sub', remove: 'all', exact: true}],
 						superscript: [{inline: 'sup', remove: 'all', exact: true}],
 					},
-					extended_valid_elements: 'b,i',
-					invalid_elements: 'em strong',
 
-					// Allow pasting while stripping all styles, tags, new lines and getting only text content
-					// More details at https://www.tiny.cloud/docs/tinymce/6/copy-and-paste/
-					paste_preprocess: (editor, args) => {
-						args.content = $('<div>' + args.content + '</div>').text();
-					},
+					extended_valid_elements: 'b,i',
+					invalid_elements: this.invalidElements,
+					valid_elements: this.validElements,
 
 					setup: (editor) => {
 						// Disable new line by preventing enter key