PHP Notice and White Screen When User without Dashboard Access Logs In

[mrwweb]

See: https://wordpress.org/support/topic/bug-when-user-does-not-have-permission-to-access-page/

When a logged-in user does not have permission to view the admin dashboard and visits /wp-admin/ the following errors occur:

[30-Mar-2020 11:36:28 UTC] PHP Notice: Trying to get property ‘cap’ of non-object in /var/www/wordpress/wp-content/plugins/wp-help/classes/plugin.php on line 211
[30-Mar-2020 11:36:28 UTC] PHP Stack trace:
[30-Mar-2020 11:36:28 UTC] PHP 1. {main}() /var/www/wordpress/wp-admin/index.php:0
[30-Mar-2020 11:36:28 UTC] PHP 2. require_once() /var/www/wordpress/wp-admin/index.php:10
[30-Mar-2020 11:36:28 UTC] PHP 3. require() /var/www/wordpress/wp-admin/admin.php:153
[30-Mar-2020 11:36:28 UTC] PHP 4. require_once() /var/www/wordpress/wp-admin/menu.php:326
[30-Mar-2020 11:36:28 UTC] PHP 5. do_action() /var/www/wordpress/wp-admin/includes/menu.php:155
[30-Mar-2020 11:36:28 UTC] PHP 6. WP_Hook->do_action() /var/www/wordpress/wp-includes/plugin.php:478
[30-Mar-2020 11:36:28 UTC] PHP 7. WP_Hook->apply_filters() /var/www/wordpress/wp-includes/class-wp-hook.php:312
[30-Mar-2020 11:36:28 UTC] PHP 8. CWS_WP_Help_Plugin->admin_menu() /var/www/wordpress/wp-includes/class-wp-hook.php:288
[30-Mar-2020 11:36:28 UTC] PHP 9. CWS_WP_Help_Plugin->get_cap() /var/www/wordpress/wp-content/plugins/wp-help/classes/plugin.php:601
[30-Mar-2020 11:36:28 UTC] PHP Notice: Trying to get property ‘read_posts’ of non-object in /var/www/wordpress/wp-content/plugins/wp-help/classes/plugin.php on line 211
[30-Mar-2020 11:36:28 UTC] PHP Stack trace:
[30-Mar-2020 11:36:28 UTC] PHP 1. {main}() /var/www/wordpress/wp-admin/index.php:0
[30-Mar-2020 11:36:28 UTC] PHP 2. require_once() /var/www/wordpress/wp-admin/index.php:10
[30-Mar-2020 11:36:28 UTC] PHP 3. require() /var/www/wordpress/wp-admin/admin.php:153
[30-Mar-2020 11:36:28 UTC] PHP 4. require_once() /var/www/wordpress/wp-admin/menu.php:326
[30-Mar-2020 11:36:28 UTC] PHP 5. do_action() /var/www/wordpress/wp-admin/includes/menu.php:155
[30-Mar-2020 11:36:28 UTC] PHP 6. WP_Hook->do_action() /var/www/wordpress/wp-includes/plugin.php:478
[30-Mar-2020 11:36:28 UTC] PHP 7. WP_Hook->apply_filters() /var/www/wordpress/wp-includes/class-wp-hook.php:312
[30-Mar-2020 11:36:28 UTC] PHP 8. CWS_WP_Help_Plugin->admin_menu() /var/www/wordpress/wp-includes/class-wp-hook.php:288
[30-Mar-2020 11:36:28 UTC] PHP 9. CWS_WP_Help_Plugin->get_cap() /var/www/wordpress/wp-content/plugins/wp-help/classes/plugin.php:601

I am more than happy to fix this if you would like. Would it be possible to port the source code to github though, and I can submit a pull request?

I can confirm.