CVE-2023-6972: Backupbliss Backup Migration

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

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.

Affected products

• Backupbliss Backup Migration: before 1.4.0 (fixed in 1.4.0)

Published 2023-12-23. Last modified 2026-06-17.