Ticket #47185: 47185.diff

src/wp-includes/functions.php

@@ -6282 +6282 @@
  */
 function wp_delete_file_from_directory( $file, $directory ) {
         if ( wp_is_stream( $file ) ) {
-                $real_file      = wp_normalize_path( $file );
-                $real_directory = wp_normalize_path( $directory );
+                $real_file      = $file;
+                $real_directory = $directory;
         } else {
                 $real_file      = realpath( wp_normalize_path( $file ) );
                 $real_directory = realpath( wp_normalize_path( $directory ) );
         }
 
+        if ( false !== $real_file ) {
+                $real_file = wp_normalize_path( $real_file );
+        }
+
+        if ( false !== $real_directory ) {
+                $real_directory = wp_normalize_path( $real_directory );
+        }
+
         if ( false === $real_file || false === $real_directory || strpos( $real_file, trailingslashit( $real_directory ) ) !== 0 ) {
                 return false;
         }