Vulnerability CVE-2023-6971
Published: 2023-12-23

Description:
The Backup Migration plugin for WordPress is vulnerable to Remote File Inclusion in versions 1.0.8 to 1.3.9 via the 'content-dir' HTTP header. This makes it possible for unauthenticated attackers to include remote files on the server, resulting in code execution. NOTE: Successful exploitation of this vulnerability requires that the target server's php.ini is configured with 'allow_url_include' set to 'on'. This feature is deprecated as of PHP 7.4 and is disabled by default, but can still be explicitly enabled in later versions of PHP.

 References:
https://www.wordfence.com/threat-intel/vulnerabilities/id/b380283c-0dbb-4d67-9f66-cb7c400c0427?source=cve
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.9/includes/backup-heart.php
https://plugins.trac.wordpress.org/changeset/3012745/backup-backup
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