Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution

Improper Control of Generation of Code ('Code Injection')
CVE CVE-2023-6553
CVSS 9.8 (Critical)
Publicly Published December 11, 2023
Last Updated January 22, 2024
Researcher Nex Team


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.

Wordfence blocked 166 attacks targeting this vulnerability in the past 24 hours.



Vulnerability Details for Backup Migration

Software Type Plugin
Software Slug backup-backup (view on
Patched? Yes
Remediation Update to version 1.3.8, or a newer patched version
Affected Version
  • <= 1.3.7
Patched Version
  • 1.3.8

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