| Name | Lines of code | Maintainability | Test coverage |
| wp-includes/widgets/class-wp-widget-search.php | 38 | A 0 mins | |
| wp-includes/widgets/class-wp-widget-tag-cloud.php | 122 | B 4 hrs | |
| wp-includes/widgets/class-wp-widget-text.php | 318 | D 2 days | |
| wp-includes/wp-db.php | 5 | A 0 mins | |
| wp-includes/wp-diff.php | 8 | A 0 mins | |
| wp-links-opml.php | 67 | A 0 mins | |
| wp-load.php | 42 | A 0 mins | |
| wp-login.php | 972 | F 4 days | |
| wp-mail.php | 169 | A 0 mins | |
| wp-settings.php | 395 | B 5 hrs | |
| wp-signup.php | 611 | F 4 days | |
| wp-trackback.php | 99 | A 0 mins | |
| xmlrpc.php | 47 | A 0 mins |