Make WordPress Core

Changeset 41445 for branches/4.2


Ignore:
Timestamp:
09/19/2017 01:31:46 PM (9 years ago)
Author:
johnbillion
Message:

General: Add missing URL-encoding and add extra hardening to plugin and template names when they're displayed in the admin area.

Merges [41434] with changes to the 4.2 branch.

See #13377

Location:
branches/4.2
Files:
6 edited

Legend:

Unmodified
Added
Removed
  • branches/4.2

  • branches/4.2/src/wp-admin/includes/class-wp-plugins-list-table.php

    r31873 r41445  
    435435                                if ( $is_active ) {
    436436                                        if ( current_user_can( 'manage_network_plugins' ) )
    437                                                 $actions['deactivate'] = '<a href="' . wp_nonce_url('plugins.php?action=deactivate&amp;plugin=' . $plugin_file . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'deactivate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Deactivate this plugin') . '">' . __('Network Deactivate') . '</a>';
     437                                                $actions['deactivate'] = '<a href="' . wp_nonce_url('plugins.php?action=deactivate&amp;plugin=' . urlencode( $plugin_file ) . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'deactivate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Deactivate this plugin') . '">' . __('Network Deactivate') . '</a>';
    438438                                } else {
    439439                                        if ( current_user_can( 'manage_network_plugins' ) )
    440                                                 $actions['activate'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . $plugin_file . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin for all sites in this network') . '" class="edit">' . __('Network Activate') . '</a>';
     440                                                $actions['activate'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . urlencode( $plugin_file ) . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin for all sites in this network') . '" class="edit">' . __('Network Activate') . '</a>';
    441441                                        if ( current_user_can( 'delete_plugins' ) && ! is_plugin_active( $plugin_file ) )
    442                                                 $actions['delete'] = '<a href="' . wp_nonce_url('plugins.php?action=delete-selected&amp;checked[]=' . $plugin_file . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'bulk-plugins') . '" title="' . esc_attr__('Delete this plugin') . '" class="delete">' . __('Delete') . '</a>';
     442                                                $actions['delete'] = '<a href="' . wp_nonce_url('plugins.php?action=delete-selected&amp;checked[]=' . urlencode( $plugin_file ) . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'bulk-plugins') . '" title="' . esc_attr__('Delete this plugin') . '" class="delete">' . __('Delete') . '</a>';
    443443                                }
    444444                        } else {
    445445                                if ( $is_active ) {
    446                                         $actions['deactivate'] = '<a href="' . wp_nonce_url('plugins.php?action=deactivate&amp;plugin=' . $plugin_file . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'deactivate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Deactivate this plugin') . '">' . __('Deactivate') . '</a>';
     446                                        $actions['deactivate'] = '<a href="' . wp_nonce_url('plugins.php?action=deactivate&amp;plugin=' . urlencode( $plugin_file ) . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'deactivate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Deactivate this plugin') . '">' . __('Deactivate') . '</a>';
    447447                                } else {
    448                                         $actions['activate'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . $plugin_file . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" class="edit">' . __('Activate') . '</a>';
     448                                        $actions['activate'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . urlencode( $plugin_file ) . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" class="edit">' . __('Activate') . '</a>';
    449449
    450450                                        if ( ! is_multisite() && current_user_can('delete_plugins') )
    451                                                 $actions['delete'] = '<a href="' . wp_nonce_url('plugins.php?action=delete-selected&amp;checked[]=' . $plugin_file . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'bulk-plugins') . '" title="' . esc_attr__('Delete this plugin') . '" class="delete">' . __('Delete') . '</a>';
     451                                                $actions['delete'] = '<a href="' . wp_nonce_url('plugins.php?action=delete-selected&amp;checked[]=' . urlencode( $plugin_file ) . '&amp;plugin_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'bulk-plugins') . '" title="' . esc_attr__('Delete this plugin') . '" class="delete">' . __('Delete') . '</a>';
    452452                                } // end if $is_active
    453453
     
    455455
    456456                        if ( ( ! is_multisite() || $screen->in_admin( 'network' ) ) && current_user_can('edit_plugins') && is_writable(WP_PLUGIN_DIR . '/' . $plugin_file) )
    457                                 $actions['edit'] = '<a href="plugin-editor.php?file=' . $plugin_file . '" title="' . esc_attr__('Open this file in the Plugin Editor') . '" class="edit">' . __('Edit') . '</a>';
     457                                $actions['edit'] = '<a href="plugin-editor.php?file=' . urlencode( $plugin_file ) . '" title="' . esc_attr__('Open this file in the Plugin Editor') . '" class="edit">' . __('Edit') . '</a>';
    458458                } // end if $context
    459459
  • branches/4.2/src/wp-admin/includes/template.php

    r32175 r41445  
    831831        foreach ( array_keys( $templates ) as $template ) {
    832832                $selected = selected( $default, $templates[ $template ], false );
    833                 echo "\n\t<option value='" . $templates[ $template ] . "' $selected>$template</option>";
     833                echo "\n\t<option value='" . esc_attr( $templates[ $template ] ) . "' $selected>" . esc_html( $template ) . "</option>";
    834834        }
    835835}
  • branches/4.2/src/wp-admin/plugin-editor.php

    r32116 r41445  
    9494
    9595                if ( ( ! empty( $_GET['networkwide'] ) && ! is_plugin_active_for_network($file) ) || ! is_plugin_active($file) )
    96                         activate_plugin($file, "plugin-editor.php?file=$file&phperror=1", ! empty( $_GET['networkwide'] ) ); // we'll override this later if the plugin can be included without fatal error
    97 
    98                 wp_redirect( self_admin_url("plugin-editor.php?file=$file&a=te&scrollto=$scrollto") );
     96                        activate_plugin($file, "plugin-editor.php?file=" . urlencode( $file ) . "&phperror=1", ! empty( $_GET['networkwide'] ) ); // we'll override this later if the plugin can be included without fatal error
     97
     98                wp_redirect( self_admin_url("plugin-editor.php?file=" . urlencode( $file ) . "&a=te&scrollto=$scrollto") );
    9999                exit;
    100100        }
     
    182182        if ( is_plugin_active($plugin) ) {
    183183                if ( is_writeable($real_file) )
    184                         echo sprintf(__('Editing <strong>%s</strong> (active)'), $file);
     184                        echo sprintf(__('Editing <strong>%s</strong> (active)'), esc_html( $file ) );
    185185                else
    186                         echo sprintf(__('Browsing <strong>%s</strong> (active)'), $file);
     186                        echo sprintf(__('Browsing <strong>%s</strong> (active)'), esc_html( $file ) );
    187187        } else {
    188188                if ( is_writeable($real_file) )
    189                         echo sprintf(__('Editing <strong>%s</strong> (inactive)'), $file);
     189                        echo sprintf(__('Editing <strong>%s</strong> (inactive)'), esc_html( $file ) );
    190190                else
    191                         echo sprintf(__('Browsing <strong>%s</strong> (inactive)'), $file);
     191                        echo sprintf(__('Browsing <strong>%s</strong> (inactive)'), esc_html( $file ) );
    192192        }
    193193        ?></big>
     
    233233        }
    234234?>
    235                 <li<?php echo $file == $plugin_file ? ' class="highlight"' : ''; ?>><a href="plugin-editor.php?file=<?php echo urlencode( $plugin_file ) ?>&amp;plugin=<?php echo urlencode( $plugin ) ?>"><?php echo $plugin_file ?></a></li>
     235                <li<?php echo $file == $plugin_file ? ' class="highlight"' : ''; ?>><a href="plugin-editor.php?file=<?php echo urlencode( $plugin_file ) ?>&amp;plugin=<?php echo urlencode( $plugin ) ?>"><?php echo esc_html( $plugin_file ); ?></a></li>
    236236<?php endforeach; ?>
    237237        </ul>
  • branches/4.2/src/wp-admin/plugins.php

    r40175 r41445  
    1818$action = $wp_list_table->current_action();
    1919
    20 $plugin = isset($_REQUEST['plugin']) ? $_REQUEST['plugin'] : '';
     20$plugin = isset($_REQUEST['plugin']) ? wp_unslash( $_REQUEST['plugin'] ) : '';
    2121$s = isset($_REQUEST['s']) ? urlencode($_REQUEST['s']) : '';
    2222
     
    4040                        check_admin_referer('activate-plugin_' . $plugin);
    4141
    42                         $result = activate_plugin($plugin, self_admin_url('plugins.php?error=true&plugin=' . $plugin), is_network_admin() );
     42                        $result = activate_plugin($plugin, self_admin_url('plugins.php?error=true&plugin=' . urlencode( $plugin ) ), is_network_admin() );
    4343                        if ( is_wp_error( $result ) ) {
    4444                                if ( 'unexpected_output' == $result->get_error_code() ) {
    45                                         $redirect = self_admin_url('plugins.php?error=true&charsout=' . strlen($result->get_error_data()) . '&plugin=' . $plugin . "&plugin_status=$status&paged=$page&s=$s");
     45                                        $redirect = self_admin_url('plugins.php?error=true&charsout=' . strlen($result->get_error_data()) . '&plugin=' . urlencode( $plugin ) . "&plugin_status=$status&paged=$page&s=$s");
    4646                                        wp_redirect(add_query_arg('_error_nonce', wp_create_nonce('plugin-activation-error_' . $plugin), $redirect));
    4747                                        exit;
     
    7070                        check_admin_referer('bulk-plugins');
    7171
    72                         $plugins = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
     72                        $plugins = isset( $_POST['checked'] ) ? (array) wp_unslash( $_POST['checked'] ) : array();
    7373
    7474                        if ( is_network_admin() ) {
     
    110110
    111111                        if ( isset( $_GET['plugins'] ) )
    112                                 $plugins = explode( ',', $_GET['plugins'] );
     112                                $plugins = explode( ',', wp_unslash( $_GET['plugins'] ) );
    113113                        elseif ( isset( $_POST['checked'] ) )
    114                                 $plugins = (array) $_POST['checked'];
     114                                $plugins = (array) wp_unslash( $_POST['checked'] );
    115115                        else
    116116                                $plugins = array();
     
    184184                        check_admin_referer('bulk-plugins');
    185185
    186                         $plugins = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
     186                        $plugins = isset( $_POST['checked'] ) ? (array) wp_unslash( $_POST['checked'] ) : array();
    187187                        // Do not deactivate plugins which are already deactivated.
    188188                        if ( is_network_admin() ) {
     
    217217
    218218                        //$_POST = from the plugin form; $_GET = from the FTP details screen.
    219                         $plugins = isset( $_REQUEST['checked'] ) ? (array) $_REQUEST['checked'] : array();
     219                        $plugins = isset( $_REQUEST['checked'] ) ? (array) wp_unslash( $_REQUEST['checked'] ) : array();
    220220                        if ( empty( $plugins ) ) {
    221221                                wp_redirect( self_admin_url("plugins.php?plugin_status=$status&paged=$page&s=$s") );
  • branches/4.2/src/wp-admin/theme-editor.php

    r32116 r41445  
    6969        $file = $allowed_files['style.css'];
    7070} else {
    71         $relative_file = $file;
     71        $relative_file = wp_unslash( $file );
    7272        $file = $theme->get_stylesheet_directory() . '/' . $relative_file;
    7373}
     
    126126<?php endif;
    127127
    128 $description = get_file_description( $file );
     128$file_description = get_file_description( $relative_file );
    129129$file_show = array_search( $file, array_filter( $allowed_files ) );
    130 if ( $description != $file_show )
    131         $description .= ' <span>(' . $file_show . ')</span>';
     130$description = esc_html( $file_description );
     131if ( $file_description != $file_show ) {
     132        $description .= ' <span>(' . esc_html( $file_show ) . ')</span>';
     133}
    132134?>
    133135<div class="wrap">
     
    178180                        echo "\t</ul>\n\t<h3>" . _x( 'Styles', 'Theme stylesheets in theme editor' ) . "</h3>\n\t<ul>\n";
    179181
    180                 $file_description = get_file_description( $absolute_filename );
     182                $file_description = esc_html( get_file_description( $filename ) );
    181183                if ( $file_description != basename( $filename ) )
    182                         $file_description .= '<br /><span class="nonessential">(' . $filename . ')</span>';
     184                        $file_description .= '<br /><span class="nonessential">(' . esc_html( $filename ) . ')</span>';
    183185
    184186                if ( $absolute_filename == $file )
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