You can also replace line 1667 in modules/Utils/RecordBrowser/RecordBrowserCommon_0.php
Utils_SafeHtml_SafeHtml::setSafeHtml(new Utils_SafeHtml_HtmlPurifier);
$r[$desc['id']] = Utils_SafeHtml_SafeHtml::outputSafeHtml($row['f_' . $desc['id']]);
with
$r[$desc['id']] =$row['f_' . $desc['id']];
what this code does is check fields for xss attacks, specifically injeted into notes. So replacing this line reintroduced the vulnerability, but will tempoarily fix your error.