CVE-2023-6553 CRITICAL

CVE-2023-6553: Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution

Vendor Inisev
Product BackupBliss – Backup & Migration with Free Cloud Storage
Weakness CWE-94 · Code injection
Published December 15, 2023
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.7 via the /includes/backup-heart.php file. This is due to an attacker being able to control the values passed to an include, and subsequently leverage that to achieve remote code execution. This makes it possible for unauthenticated attackers to easily execute code on the server.

Key dates

02Disclosure timeline

December 15, 2023 CVE published
April 8, 2026 Record updated