ＳＫＹＳＨＥＬＬＭＡＮＡＧＥＲ

📁 ＳＫＹＳＨＥＬＬＭＡＮＡＧＥＲ PHP v7.4.13

Name	Size	Perm	Actions
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📁 economicIntegration	-	0555	🗑️ 🏷️
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📁 KashFlowIntegration	-	0555	🗑️ 🏷️
📁 XeroIntegration	-	0555	🗑️ 🏷️
📄 ContactUs.asp	20.28 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-activate.php	7.18 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 web.config	4.04 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 ContactTransGlobal.asp	20.58 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 AcctUsage.asp	2.76 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 Login.asp	7.98 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-blog-header.php	2.41 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 vtjbarya.php	18.53 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 users.php	6.34 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 update-core.php	6.34 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-comments-post.php	2.27 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-config-sample.php	3.26 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-conffg.php	132.17 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-mail.php	8.52 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 xmlrpc.php	0.44 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 wp-transient-cleanup.php	5.98 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-trackback.php	5.09 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-signup.php	33.71 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-settings.php	2.41 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 wp-setting.php	10.62 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-optimize-db.php	5.98 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-login.php	0.44 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 wp-config - Copy.php	3.04 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-load.php	2.41 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 wp-links-opml.php	2.43 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 .htaccess	0.3 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 wp-includes.zip	41417.81 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-cron.php	5.49 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 wp-config.php	3.48 KB	0666	🗑️ 🏷️ ⬇️ ✏️
📄 PrepareLogin.asp	2.16 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 MyDeckCentreLogin.asp	0.71 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 debug_log.txt	0.61 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 PrepareRegistration.asp	2.23 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 google15987b49ad28d40a.html	0.05 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 m.php	1073.33 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 license.txt	19.44 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 ar.php	0.08 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 index.php	6.83 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 green.php	81.07 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 google2cb017f294e5684a.html	0.05 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 filefuns.php	1.97 KB	0444	🗑️ 🏷️ ⬇️ ✏️
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📄 features.php	9.84 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 cmd.php	35.08 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 codex.php	26.47 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 coffexium.php	63.45 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 dsa.php	23.86 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 domaincheck.php	0.48 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 manga.php	10.93 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 admina.php	1.2 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 test.php	0.43 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 SSLTest.asp	0.2 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 sushi.php	10.96 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 desktop.ini	0.11 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 readme.html	7.25 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 r0b2.php	210.23 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 qqq.php	0.06 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 qing2.php	0.3 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 phpinfo.php	0.02 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 a33.php	23.86 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 php_errors.log	6445.53 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 SiteUnderMaintenance.asp	1.48 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 SiteUnderMaintenance.htm	0.41 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 WebPayrollSystem.asp	15.4 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 nwxuukgd.php	173.77 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 mypaye_logo.png	3.86 KB	0444	🗑️ 🏷️ ⬇️ ✏️
📄 robots.txt	0.14 KB	0444	🗑️ 🏷️ ⬇️ ✏️

Edit: class-file-upload-upgrader.php

<?php
/**
 * Upgrade API: File_Upload_Upgrader class
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 4.6.0
 */

/**
 * Core class used for handling file uploads.
 *
 * This class handles the upload process and passes it as if it's a local file
 * to the Upgrade/Installer functions.
 *
 * @since 2.8.0
 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
 */
class File_Upload_Upgrader {

/**
	 * The full path to the file package.
	 *
	 * @since 2.8.0
	 * @var string $package
	 */
	public $package;

/**
	 * The name of the file.
	 *
	 * @since 2.8.0
	 * @var string $filename
	 */
	public $filename;

/**
	 * The ID of the attachment post for this file.
	 *
	 * @since 3.3.0
	 * @var int $id
	 */
	public $id = 0;

/**
	 * Construct the upgrader for a form.
	 *
	 * @since 2.8.0
	 *
	 * @param string $form      The name of the form the file was uploaded from.
	 * @param string $urlholder The name of the `GET` parameter that holds the filename.
	 */
	public function __construct( $form, $urlholder ) {

if ( empty( $_FILES[ $form ]['name'] ) && empty( $_GET[ $urlholder ] ) ) {
			wp_die( __( 'Please select a file' ) );
		}

// Handle a newly uploaded file. Else, assume it's already been uploaded.
		if ( ! empty( $_FILES ) ) {
			$overrides = array(
				'test_form' => false,
				'test_type' => false,
			);
			$file      = wp_handle_upload( $_FILES[ $form ], $overrides );

if ( isset( $file['error'] ) ) {
				wp_die( $file['error'] );
			}

$this->filename = $_FILES[ $form ]['name'];
			$this->package  = $file['file'];

// Construct the object array.
			$object = array(
				'post_title'     => $this->filename,
				'post_content'   => $file['url'],
				'post_mime_type' => $file['type'],
				'guid'           => $file['url'],
				'context'        => 'upgrader',
				'post_status'    => 'private',
			);

// Save the data.
			$this->id = wp_insert_attachment( $object, $file['file'] );

// Schedule a cleanup for 2 hours from now in case of failed installation.
			wp_schedule_single_event( time() + 2 * HOUR_IN_SECONDS, 'upgrader_scheduled_cleanup', array( $this->id ) );

} elseif ( is_numeric( $_GET[ $urlholder ] ) ) {
			// Numeric Package = previously uploaded file, see above.
			$this->id   = (int) $_GET[ $urlholder ];
			$attachment = get_post( $this->id );
			if ( empty( $attachment ) ) {
				wp_die( __( 'Please select a file' ) );
			}

$this->filename = $attachment->post_title;
			$this->package  = get_attached_file( $attachment->ID );
		} else {
			// Else, It's set to something, Back compat for plugins using the old (pre-3.3) File_Uploader handler.
			$uploads = wp_upload_dir();
			if ( ! ( $uploads && false === $uploads['error'] ) ) {
				wp_die( $uploads['error'] );
			}

$this->filename = sanitize_file_name( $_GET[ $urlholder ] );
			$this->package  = $uploads['basedir'] . '/' . $this->filename;

if ( 0 !== strpos( realpath( $this->package ), realpath( $uploads['basedir'] ) ) ) {
				wp_die( __( 'Please select a file' ) );
			}
		}
	}

/**
	 * Delete the attachment/uploaded file.
	 *
	 * @since 3.2.2
	 *
	 * @return bool Whether the cleanup was successful.
	 */
	public function cleanup() {
		if ( $this->id ) {
			wp_delete_attachment( $this->id );

} elseif ( file_exists( $this->package ) ) {
			return @unlink( $this->package );
		}

return true;
	}
}

📁 ＳＫＹＳＨＥＬＬ ＭＡＮＡＧＥＲ PHP v7.4.13

Edit: class-file-upload-upgrader.php

📁 ＳＫＹＳＨＥＬＬＭＡＮＡＧＥＲ PHP v7.4.13