diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index d30eb562feb..9568ec25828 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -4949,7 +4949,10 @@ class Form
 			foreach ($formquestion as $key => $input) {
 				if (is_array($input) && !empty($input)) {
 					if ($input['type'] == 'hidden') {
-						$more .= '<input type="hidden" id="'.dol_escape_htmltag($input['name']).'" name="'.dol_escape_htmltag($input['name']).'" value="'.dol_escape_htmltag($input['value']).'">'."\n";
+						$moreattr = (!empty($input['moreattr']) ? ' '.$input['moreattr'] : '');
+						$morecss = (!empty($input['morecss']) ? ' '.$input['morecss'] : '');
+
+						$more .= '<input type="hidden" id="'.dol_escape_htmltag($input['name']).'" name="'.dol_escape_htmltag($input['name']).'" value="'.dol_escape_htmltag($input['value']).'" class="'.$morecss.'"'.$moreattr.'>'."\n";
 					}
 				}
 			}
diff --git a/htdocs/user/class/user.class.php b/htdocs/user/class/user.class.php
index b47781a9db4..ee6d0e7bd14 100644
--- a/htdocs/user/class/user.class.php
+++ b/htdocs/user/class/user.class.php
@@ -3796,7 +3796,7 @@ class User extends CommonObject
 			foreach ($filter as $key => $value) {
 				if ($key == 't.rowid') {
 					$sqlwhere[] = $key." = ".((int) $value);
-				} elseif (in_array($this->fields[$key]['type'], array('date', 'datetime', 'timestamp'))) {
+				} elseif (isset($this->fields[$key]['type']) && in_array($this->fields[$key]['type'], array('date', 'datetime', 'timestamp'))) {
 					$sqlwhere[] = $key." = '".$this->db->idate($value)."'";
 				} elseif ($key == 'customsql') {
 					$sqlwhere[] = $value;