Backup Migration <= 1.3.9 - Unauthenticated Path Traversal to Arbitrary File Deletion

9.8
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE CVE-2023-6972
CVSS 9.8 (Critical)
Publicly Published December 22, 2023
Last Updated April 15, 2024
Researcher Hiroho Shimada

Description

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.

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Vulnerability Details for Backup Migration

Software Type Plugin
Software Slug backup-backup (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.4.0, or a newer patched version
Affected Version
  • <= 1.3.9
Patched Version
  • 1.4.0

Recent vulnerabilities in Backup Migration

# Title CVE ID CVSS Researchers Date
1 BackupBliss – Backup & Migration with Free Cloud Storage <= 2.1.1 - Unauthenticated Information Exposure CVE-2026-39480 5.3 ch4r0n April 8, 2026
2 Backup Migration <= 2.0.0 - Missing Authorization to Unauthenticated Backup Upload to Offline Storage CVE-2025-14944 5.3 0N0ise April 6, 2026
3 Backup Migration <= 1.4.9 - Information Exposure to Unauthenticated Back-up Download CVE-2025-12394 7.5 ymmfty0 November 3, 2025
4 Backup Migration <= 1.4.6 - Unauthenticated PHP Object Injection via 'recursive_unserialize_replace' CVE-2024-10932 8.8 Webbernaut January 3, 2025
5 Backup Migration <= 1.4.3 - Information Exposure via Log Files CVE-2024-32686 5.3 emad April 17, 2024
6 Inisev Analyst Module <= Various Versions - Missing Authorization CVE-2024-31435 4.3 Dhabaleshwar Das April 10, 2024
7 Backup Migration 1.0.8 - 1.3.9 - Remote File Inclusion via content-dir CVE-2023-6971 8.1 Hiroho Shimada December 22, 2023
8 Backup Migration <= 1.3.9 - Authenticated (Admin+) OS Command Injection via url CVE-2023-7002 7.2 Françoa Taffarel December 22, 2023
9 Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution CVE-2023-6553 9.8 Nex Team December 11, 2023
10 Backup Migration <= 1.3.5 - Unauthenticated Sensitive Information Exposure CVE-2023-6271 9.8 Dmitrii Ignatyev December 7, 2023

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