Make WordPress Core

Changeset 57390


Ignore:
Timestamp:
01/30/2024 02:24:32 PM (4 months ago)
Author:
jorbin
Message:

Uploads: Check for and verify ZIP archives.

Merges [57388] to 6.4 branch.

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

Location:
branches/6.4
Files:
3 edited

Legend:

Unmodified
Added
Removed
  • branches/6.4

  • branches/6.4/src/wp-admin/includes/class-file-upload-upgrader.php

    r55911 r57390  
    7070            }
    7171
     72            if ( 'pluginzip' === $form || 'themezip' === $form ) {
     73                $archive_is_valid = false;
     74
     75                /** This filter is documented in wp-admin/includes/file.php */
     76                if ( class_exists( 'ZipArchive', false ) && apply_filters( 'unzip_file_use_ziparchive', true ) ) {
     77                    $archive          = new ZipArchive();
     78                    $archive_is_valid = $archive->open( $file['file'], ZIPARCHIVE::CHECKCONS );
     79
     80                    if ( true === $archive_is_valid ) {
     81                        $archive->close();
     82                    }
     83                } else {
     84                    require_once ABSPATH . 'wp-admin/includes/class-pclzip.php';
     85
     86                    $archive          = new PclZip( $file['file'] );
     87                    $archive_is_valid = is_array( $archive->properties() );
     88                }
     89
     90                if ( true !== $archive_is_valid ) {
     91                    wp_delete_file( $file['file'] );
     92                    wp_die( __( 'Incompatible Archive.' ) );
     93                }
     94            }
     95
    7296            $this->filename = $_FILES[ $form ]['name'];
    7397            $this->package  = $file['file'];
  • branches/6.4/src/wp-admin/update.php

    r55641 r57390  
    154154
    155155        check_admin_referer( 'plugin-upload' );
     156
     157        if ( isset( $_FILES['pluginzip']['name'] ) && ! str_ends_with( strtolower( $_FILES['pluginzip']['name'] ), '.zip' ) ) {
     158            wp_die( __( 'Only .zip archives may be uploaded.' ) );
     159        }
    156160
    157161        $file_upload = new File_Upload_Upgrader( 'pluginzip', 'package' );
     
    302306
    303307        check_admin_referer( 'theme-upload' );
     308
     309        if ( isset( $_FILES['themezip']['name'] ) && ! str_ends_with( strtolower( $_FILES['themezip']['name'] ), '.zip' ) ) {
     310            wp_die( __( 'Only .zip archives may be uploaded.' ) );
     311        }
    304312
    305313        $file_upload = new File_Upload_Upgrader( 'themezip', 'package' );
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