diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
index 08a75a216a0..ff1adb58410 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
@@ -4748,7 +4748,9 @@ export class OdooEditor extends EventTarget {
         }
         if (odooEditorHtml && targetSupportsHtmlContent) {
             const fragment = parseHTML(this.document, odooEditorHtml);
-            DOMPurify.sanitize(fragment, { IN_PLACE: true });
+            // Instantiate DOMPurify with the correct window.
+            this.DOMPurify ??= DOMPurify(this.document.defaultView);
+            this.DOMPurify.sanitize(fragment, { IN_PLACE: true });
             if (fragment.hasChildNodes()) {
                 this._applyCommand('insert', fragment);
             }
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
index b7e6a8c7c0c..5dfa633b2ff 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
@@ -2725,7 +2725,7 @@ export function rgbToHex(rgb = '', node = null) {
 
 export function parseHTML(document, html) {
     const fragment = document.createDocumentFragment();
-    const parser = new DOMParser();
+    const parser = new document.defaultView.DOMParser();
     const parsedDocument = parser.parseFromString(html, 'text/html');
     fragment.replaceChildren(...parsedDocument.body.childNodes);
     return fragment;
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
index 9cf5a3b4974..0fa2d8a6315 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
@@ -12,7 +12,7 @@ import {
     pasteHtml,
     pasteOdooEditorHtml,
 } from "../utils.js";
-import {CLIPBOARD_WHITELISTS} from "../../src/OdooEditor.js";
+import { CLIPBOARD_WHITELISTS, setSelection } from "../../src/OdooEditor.js";
 
 describe('Copy', () => {
     describe('range collapsed', async () => {
@@ -2219,4 +2219,33 @@ describe('Paste', () => {
             });
         });
     });
+    describe('editable in iframe', () => {
+        it('should paste odoo-editor html', async () => {
+            // Setup
+            const testContainer = document.querySelector('#editor-test-container');
+            const iframe = document.createElement('iframe');
+            testContainer.append(iframe);
+            const iframeDocument = iframe.contentDocument;
+            const editable = iframeDocument.createElement('div');
+            iframeDocument.body.append(editable);
+            const editor = new BasicEditor(editable, { document: iframeDocument });
+
+            // Action: paste
+            setSelection(editable.querySelector('p'), 0);
+            const clipboardData = new DataTransfer();
+            clipboardData.setData('text/odoo-editor', '<p>text<b>bold text</b>more text</p>');
+            await triggerEvent(editor.editable, 'paste', { clipboardData });
+
+            // Clean-up
+            editor.clean();
+            editor.destroy();
+            iframe.remove();
+
+            // Assertion
+            window.chai.expect(editable.innerHTML).to.be.equal(
+                '<p>text<b>bold text</b>more text<br></p>',
+                'should paste content in the paragraph'
+            );
+        });
+    });
 });