CVE-2023-6972 CRITICAL

CVE-2023-6972: Backup Migration <= 1.3.9 - Unauthenticated Path Traversal to Arbitrary File Deletion

Vendor Inisev
Product BackupBliss – Backup & Migration with Free Cloud Storage
Weakness CWE-22 · Path traversal
Published December 23, 2023
Last update April 8, 2026

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 Path Traversal in all versions up to, and including, 1.3.9 via the 'content-backups' and 'content-name', 'content-manifest', or 'content-bmitmp' and 'content-identy' HTTP headers. This makes it possible for unauthenticated attackers to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible.

Key dates

02Disclosure timeline

December 23, 2023 CVE published
April 8, 2026 Record updated