This a very critical bug in ofbiz you can put in any html text including script or iframe tags in the input field for address update or customer name update i.e. any text field in ofbiz.
Its a major security issue for all the ofbiz installation since the text in the input text field is not sanitized.
below is small source code of the page where a script in the demo store for DemoCustomer profile which just pops up an alert box.
<td width="26%" align="right" valign="top"><div class="tabletext">Address Line 1</div></td>
<td width="5"> </td>
<input type="text" class='inputBox' size="30" maxlength="30" name="address1" value=""/><script>alert("a")</script>">
Along with this attached the screenshot you can try the demo on ofbiz ecommerce store on the ofbiz website and use DemoCustomer profile you will see the same screenshot.