Getting many Unknown file in WordPress core:

Hi,

I just received the email below from Wordfence.

Is WF saying that I have these files in my site but they are not part of the wp release in repo?

Two possibly relevant points:

1) A few days ago, I downgraded wp core from 5.0.3 down to 4.9.9 using a downgrade plugin. It looks like many if not all of the files below belong to Gutenberg, included in wp 5.0 +. Could it be this plugin did not delete files that belonged to wp 5.x?

2) I got this message about 2 minutes after WF was updated to 7.2.1.

Thanks ahead of time 🙂

High Severity Problems:

* Unknown file in WordPress core: wp-admin/edit-form-blocks.php

* Unknown file in WordPress core: wp-includes/blocks/archives.php

* Unknown file in WordPress core: wp-includes/blocks/block.php

* Unknown file in WordPress core: wp-includes/blocks/categories.php

* Unknown file in WordPress core: wp-includes/blocks/latest-comments.php

* Unknown file in WordPress core: wp-includes/blocks/latest-posts.php

* Unknown file in WordPress core: wp-includes/blocks/shortcode.php

* Unknown file in WordPress core: wp-includes/blocks.php

* Unknown file in WordPress core: wp-includes/class-wp-block-parser.php

* Unknown file in WordPress core: wp-includes/class-wp-block-type-registry.php

* Unknown file in WordPress core: wp-includes/class-wp-block-type.php

* Unknown file in WordPress core: wp-includes/css/dist/block-library/editor-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/editor-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/editor.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/editor.min.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/style.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/style.min.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/theme-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/theme-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/theme.css

* Unknown file in WordPress core: wp-includes/css/dist/block-library/theme.min.css

* Unknown file in WordPress core: wp-includes/css/dist/components/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/components/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/components/style.css

* Unknown file in WordPress core: wp-includes/css/dist/components/style.min.css

* Unknown file in WordPress core: wp-includes/css/dist/edit-post/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/edit-post/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/edit-post/style.css

* Unknown file in WordPress core: wp-includes/css/dist/edit-post/style.min.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/editor-styles-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/editor-styles-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/editor-styles.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/editor-styles.min.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/style.css

* Unknown file in WordPress core: wp-includes/css/dist/editor/style.min.css

* Unknown file in WordPress core: wp-includes/css/dist/format-library/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/format-library/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/format-library/style.css

* Unknown file in WordPress core: wp-includes/css/dist/format-library/style.min.css

* Unknown file in WordPress core: wp-includes/css/dist/list-reusable-blocks/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/list-reusable-blocks/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/list-reusable-blocks/style.css

* Unknown file in WordPress core: wp-includes/css/dist/list-reusable-blocks/style.min.css

* Unknown file in WordPress core: wp-includes/css/dist/nux/style-rtl.css

* Unknown file in WordPress core: wp-includes/css/dist/nux/style-rtl.min.css

* Unknown file in WordPress core: wp-includes/css/dist/nux/style.css

* Unknown file in WordPress core: wp-includes/css/dist/nux/style.min.css

* Unknown file in WordPress core: wp-includes/js/dist/a11y.js

* Unknown file in WordPress core: wp-includes/js/dist/a11y.min.js

* Unknown file in WordPress core: wp-includes/js/dist/annotations.js

* Unknown file in WordPress core: wp-includes/js/dist/annotations.min.js

* Unknown file in WordPress core: wp-includes/js/dist/api-fetch.js

* Unknown file in WordPress core: wp-includes/js/dist/api-fetch.min.js

* Unknown file in WordPress core: wp-includes/js/dist/autop.js

* Unknown file in WordPress core: wp-includes/js/dist/autop.min.js

* Unknown file in WordPress core: wp-includes/js/dist/blob.js

* Unknown file in WordPress core: wp-includes/js/dist/blob.min.js

* Unknown file in WordPress core: wp-includes/js/dist/block-library.js

* Unknown file in WordPress core: wp-includes/js/dist/block-library.min.js

* Unknown file in WordPress core: wp-includes/js/dist/block-serialization-default-parser.js

* Unknown file in WordPress core: wp-includes/js/dist/block-serialization-default-parser.min.js

* Unknown file in WordPress core: wp-includes/js/dist/blocks.js

* Unknown file in WordPress core: wp-includes/js/dist/blocks.min.js

* Unknown file in WordPress core: wp-includes/js/dist/components.js

* Unknown file in WordPress core: wp-includes/js/dist/components.min.js

* Unknown file in WordPress core: wp-includes/js/dist/compose.js

* Unknown file in WordPress core: wp-includes/js/dist/compose.min.js

* Unknown file in WordPress core: wp-includes/js/dist/core-data.js

* Unknown file in WordPress core: wp-includes/js/dist/core-data.min.js

* Unknown file in WordPress core: wp-includes/js/dist/data.js

* Unknown file in WordPress core: wp-includes/js/dist/data.min.js

* Unknown file in WordPress core: wp-includes/js/dist/date.js

* Unknown file in WordPress core: wp-includes/js/dist/date.min.js

* Unknown file in WordPress core: wp-includes/js/dist/deprecated.js

* Unknown file in WordPress core: wp-includes/js/dist/deprecated.min.js

* Unknown file in WordPress core: wp-includes/js/dist/dom-ready.js

* Unknown file in WordPress core: wp-includes/js/dist/dom-ready.min.js

* Unknown file in WordPress core: wp-includes/js/dist/dom.js

* Unknown file in WordPress core: wp-includes/js/dist/dom.min.js

* Unknown file in WordPress core: wp-includes/js/dist/edit-post.js

* Unknown file in WordPress core: wp-includes/js/dist/edit-post.min.js

* Unknown file in WordPress core: wp-includes/js/dist/editor.js

* Unknown file in WordPress core: wp-includes/js/dist/editor.min.js

* Unknown file in WordPress core: wp-includes/js/dist/element.js

* Unknown file in WordPress core: wp-includes/js/dist/element.min.js

* Unknown file in WordPress core: wp-includes/js/dist/escape-html.js

* Unknown file in WordPress core: wp-includes/js/dist/escape-html.min.js

* Unknown file in WordPress core: wp-includes/js/dist/format-library.js

* Unknown file in WordPress core: wp-includes/js/dist/format-library.min.js

* Unknown file in WordPress core: wp-includes/js/dist/hooks.js

* Unknown file in WordPress core: wp-includes/js/dist/hooks.min.js

* Unknown file in WordPress core: wp-includes/js/dist/html-entities.js

* Unknown file in WordPress core: wp-includes/js/dist/html-entities.min.js

* Unknown file in WordPress core: wp-includes/js/dist/i18n.js

* Unknown file in WordPress core: wp-includes/js/dist/i18n.min.js

* Unknown file in WordPress core: wp-includes/js/dist/is-shallow-equal.js

* Unknown file in WordPress core: wp-includes/js/dist/is-shallow-equal.min.js

* Unknown file in WordPress core: wp-includes/js/dist/keycodes.js

* Unknown file in WordPress core: wp-includes/js/dist/keycodes.min.js

* Unknown file in WordPress core: wp-includes/js/dist/list-reusable-blocks.js

* Unknown file in WordPress core: wp-includes/js/dist/list-reusable-blocks.min.js

* Unknown file in WordPress core: wp-includes/js/dist/notices.js

* Unknown file in WordPress core: wp-includes/js/dist/notices.min.js

* Unknown file in WordPress core: wp-includes/js/dist/nux.js

* Unknown file in WordPress core: wp-includes/js/dist/nux.min.js

* Unknown file in WordPress core: wp-includes/js/dist/plugins.js

* Unknown file in WordPress core: wp-includes/js/dist/plugins.min.js

* Unknown file in WordPress core: wp-includes/js/dist/redux-routine.js

* Unknown file in WordPress core: wp-includes/js/dist/redux-routine.min.js

* Unknown file in WordPress core: wp-includes/js/dist/rich-text.js

* Unknown file in WordPress core: wp-includes/js/dist/rich-text.min.js

* Unknown file in WordPress core: wp-includes/js/dist/shortcode.js

* Unknown file in WordPress core: wp-includes/js/dist/shortcode.min.js

* Unknown file in WordPress core: wp-includes/js/dist/token-list.js

* Unknown file in WordPress core: wp-includes/js/dist/token-list.min.js

* Unknown file in WordPress core: wp-includes/js/dist/url.js

* Unknown file in WordPress core: wp-includes/js/dist/url.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/lodash.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/lodash.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/moment.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/moment.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/react-dom.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/react-dom.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/react.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/react.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-element-closest.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-element-closest.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-fetch.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-fetch.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-formdata.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-formdata.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-node-contains.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill-node-contains.min.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill.js

* Unknown file in WordPress core: wp-includes/js/dist/vendor/wp-polyfill.min.js

* Unknown file in WordPress core: wp-includes/js/dist/viewport.js

* Unknown file in WordPress core: wp-includes/js/dist/viewport.min.js

* Unknown file in WordPress core: wp-includes/js/dist/wordcount.js

* Unknown file in WordPress core: wp-includes/js/dist/wordcount.min.js

* Unknown file in WordPress core: wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php

* Unknown file in WordPress core: wp-includes/rest-api/endpoints/class-wp-rest-block-renderer-controller.php

* Unknown file in WordPress core: wp-includes/rest-api/endpoints/class-wp-rest-blocks-controller.php

* Unknown file in WordPress core: wp-includes/rest-api/endpoints/class-wp-rest-search-controller.php

* Unknown file in WordPress core: wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php

* Unknown file in WordPress core: wp-includes/rest-api/search/class-wp-rest-post-search-handler.php

* Unknown file in WordPress core: wp-includes/rest-api/search/class-wp-rest-search-handler.php