Ticket #30392: 30392.patch

src/wp-admin/css/media.css

@@ -432 +432 @@
         position: relative;
 }
 
+/* See #30392. */
+.media-modal .moxie-shim.moxie-shim-html5 {
+        visibility: hidden;
+}
+.media-modal .moxie-shim.moxie-shim-html5 input[type="file"] {
+        visibility: visible;
+}
+
 /**
  * Media Library grid view
  */