diff --git a/mod/quiz/report/attemptsreport.php b/mod/quiz/report/attemptsreport.php
index c54f2efa091..1b231718c65 100644
--- a/mod/quiz/report/attemptsreport.php
+++ b/mod/quiz/report/attemptsreport.php
@@ -203,8 +203,7 @@ abstract class quiz_attempts_report extends quiz_default_report {
             $headers[] = get_string('firstname');
         }
 
-        // TODO Does not support custom user profile fields (MDL-70456).
-        $extrafields = \core_user\fields::get_identity_fields($this->context, false);
+        $extrafields = \core_user\fields::get_identity_fields($this->context);
         foreach ($extrafields as $field) {
             $columns[] = $field;
             $headers[] = \core_user\fields::get_display_name($field);
@@ -218,8 +217,8 @@ abstract class quiz_attempts_report extends quiz_default_report {
     protected function configure_user_columns($table) {
         $table->column_suppress('picture');
         $table->column_suppress('fullname');
-        // TODO Does not support custom user profile fields (MDL-70456).
-        $extrafields = \core_user\fields::get_identity_fields($this->context, false);
+
+        $extrafields = \core_user\fields::get_identity_fields($this->context);
         foreach ($extrafields as $field) {
             $table->column_suppress($field);
         }
diff --git a/mod/quiz/report/attemptsreport_table.php b/mod/quiz/report/attemptsreport_table.php
index 48509bb2bdf..4f7935181ea 100644
--- a/mod/quiz/report/attemptsreport_table.php
+++ b/mod/quiz/report/attemptsreport_table.php
@@ -423,10 +423,10 @@ abstract class quiz_attempts_report_table extends table_sql {
             $fields .= "\n(CASE WHEN $this->qmsubselect THEN 1 ELSE 0 END) AS gradedattempt,";
         }
 
-        // TODO Does not support custom user profile fields (MDL-70456).
-        $userfields = \core_user\fields::for_identity($this->context, false)->with_name()
+        $userfieldsapi = \core_user\fields::for_identity($this->context)->with_name()
                 ->excluding('id', 'idnumber', 'picture', 'imagealt', 'institution', 'department', 'email');
-        $extrafields = $userfields->get_sql('u')->selects;
+        $userfields = $userfieldsapi->get_sql('u', true, '', '', false);
+
         $fields .= '
                 quiza.uniqueid AS usageid,
                 quiza.id AS attempt,
@@ -436,7 +436,7 @@ abstract class quiz_attempts_report_table extends table_sql {
                 u.imagealt,
                 u.institution,
                 u.department,
-                u.email' . $extrafields . ',
+                u.email,' . $userfields->selects . ',
                 quiza.state,
                 quiza.sumgrades,
                 quiza.timefinish,
@@ -450,9 +450,10 @@ abstract class quiz_attempts_report_table extends table_sql {
 
         // This part is the same for all cases. Join the users and quiz_attempts tables.
         $from = " {user} u";
+        $from .= "\n{$userfields->joins}";
         $from .= "\nLEFT JOIN {quiz_attempts} quiza ON
                                     quiza.userid = u.id AND quiza.quiz = :quizid";
-        $params = array('quizid' => $this->quiz->id);
+        $params = array_merge($userfields->params, ['quizid' => $this->quiz->id]);
 
         if ($this->qmsubselect && $this->options->onlygraded) {
             $from .= " AND (quiza.state <> :finishedstate OR $this->qmsubselect)";
diff --git a/mod/quiz/report/overview/tests/behat/basic.feature b/mod/quiz/report/overview/tests/behat/basic.feature
index 91c35bc7069..d0c665ed7b7 100644
--- a/mod/quiz/report/overview/tests/behat/basic.feature
+++ b/mod/quiz/report/overview/tests/behat/basic.feature
@@ -4,14 +4,16 @@ Feature: Basic use of the Grades report
   As a teacher
   I need to use the Grades report
 
-  @javascript
-  Scenario: Using the Grades report
-    Given the following "users" exist:
-      | username | firstname | lastname | email                | idnumber |
-      | teacher1 | T1        | Teacher1 | teacher1@example.com | T1000    |
-      | student1 | S1        | Student1 | student1@example.com | S1000    |
-      | student2 | S2        | Student2 | student2@example.com | S2000    |
-      | student3 | S3        | Student3 | student3@example.com | S3000    |
+  Background:
+    Given the following "custom profile fields" exist:
+      | datatype | shortname | name  |
+      | text     | fruit     | Fruit |
+    And the following "users" exist:
+      | username | firstname | lastname | email                | idnumber | profile_field_fruit |
+      | teacher1 | T1        | Teacher1 | teacher1@example.com | T1000    |                     |
+      | student1 | S1        | Student1 | student1@example.com | S1000    | Apple               |
+      | student2 | S2        | Student2 | student2@example.com | S2000    | Banana              |
+      | student3 | S3        | Student3 | student3@example.com | S3000    | Pear                |
     And the following "courses" exist:
       | fullname | shortname | category |
       | Course 1 | C1        | 0        |
@@ -44,6 +46,8 @@ Feature: Basic use of the Grades report
       |   1  | True     |
       |   2  | True     |
 
+  @javascript
+  Scenario: Using the Grades report
     # Basic check of the Grades report
     When I log in as "teacher1"
     And I am on "Course 1" course homepage
@@ -77,3 +81,14 @@ Feature: Basic use of the Grades report
     And I should see "25.00" in the "S1 Student1" "table_row"
     # Check student2's grade
     And I should see "100.00" in the "S2 Student2" "table_row"
+
+  @javascript
+  Scenario: View custom user profile fields in the grades report
+    Given the following config values are set as admin:
+      | showuseridentity | email,profile_field_fruit |
+    When I log in as "teacher1"
+    And I am on "Course 1" course homepage
+    And I follow "Quiz 1"
+    And I navigate to "Results > Grades" in current page administration
+    Then I should see "Apple" in the "S1 Student1" "table_row"
+    And I should see "Banana" in the "S2 Student2" "table_row"