Changeset 57411

Timestamp:

01/30/2024 03:11:35 PM (3 years ago)

Author:

jorbin

Message:

Grouped Backports to the 4.4 branch.

• Install: When populating options, maybe_serialize instead of always serialize.
• Uploads: Check for and verify ZIP archives.

Merges [57388] and [57389] to the 4.4 branch.

Props costdev, peterwilsoncc, azaozz, tykoted, johnbillion, desrosj, afragen, jorbin, xknown.

Location:

branches/4.4

Files:

• . (modified) (1 prop)
• src/wp-admin/includes/class-wp-upgrader.php (modified) (1 diff)
• src/wp-admin/includes/schema.php (modified) (1 diff)
• src/wp-admin/update.php (modified) (2 diffs)

branches/4.4/src/wp-admin/includes/class-wp-upgrader.php

@@ -2548 +2548 @@
                                 wp_die( $file['error'] );
 
+                        if ( 'pluginzip' === $form || 'themezip' === $form ) {
+                                $archive_is_valid = false;
+
+                                /** This filter is documented in wp-admin/includes/file.php */
+                                if ( class_exists( 'ZipArchive', false ) && apply_filters( 'unzip_file_use_ziparchive', true ) ) {
+                                        $archive          = new ZipArchive();
+                                        $archive_is_valid = $archive->open( $file['file'], ZIPARCHIVE::CHECKCONS );
+
+                                        if ( true === $archive_is_valid ) {
+                                                $archive->close();
+                                        }
+                                } else {
+                                        require_once ABSPATH . 'wp-admin/includes/class-pclzip.php';
+
+                                        $archive          = new PclZip( $file['file'] );
+                                        $archive_is_valid = is_array( $archive->properties() );
+                                }
+
+                                if ( true !== $archive_is_valid ) {
+                                        wp_delete_file( $file['file'] );
+                                        wp_die( __( 'Incompatible Archive.' ) );
+                                }
+                        }
+
                         $this->filename = $_FILES[$form]['name'];
                         $this->package = $file['file'];

branches/4.4/src/wp-admin/includes/schema.php

@@ -549 +549 @@
                         $autoload = 'yes';
 
-                if ( is_array($value) )
-                        $value = serialize($value);
                 if ( !empty($insert) )
                         $insert .= ', ';
+
+                $value = maybe_serialize( sanitize_option( $option, $value ) );
+
                 $insert .= $wpdb->prepare( "(%s, %s, %s)", $option, $value, $autoload );
         }

branches/4.4/src/wp-admin/update.php

@@ -147 +147 @@
                 check_admin_referer('plugin-upload');
 
+                if ( isset( $_FILES['pluginzip']['name'] ) && ! str_ends_with( strtolower( $_FILES['pluginzip']['name'] ), '.zip' ) ) {
+                        wp_die( __( 'Only .zip archives may be uploaded.' ) );
+                }
+
                 $file_upload = new File_Upload_Upgrader('pluginzip', 'package');
 
@@ -251 +255 @@
 
                 check_admin_referer('theme-upload');
+
+                if ( isset( $_FILES['themezip']['name'] ) && ! str_ends_with( strtolower( $_FILES['themezip']['name'] ), '.zip' ) ) {
+                        wp_die( __( 'Only .zip archives may be uploaded.' ) );
+                }
 
                 $file_upload = new File_Upload_Upgrader('themezip', 'package');