Description
The Demi – One Click Demo Import, WP Backup & Site Migration plugin for WordPress is vulnerable to Arbitrary Directory Copy in all versions up to, and including, 0.0.8 via the handle_restore_step function. This is due to missing HTTP access controls on the wp-content/uploads/demi-backup-state/ directory, which exposes the cryptographic restore key used to both authenticate the unauthenticated AJAX handler and forge signed restore-state envelopes. This makes it possible for unauthenticated attackers to copy arbitrary files to attacker-controlled destinations on the server. An active restore operation must have been initiated, which writes the .restore_key and .restore_step_token files to the public upload directory, before the exposed secrets can be harvested and chained to achieve unauthenticated arbitrary file copy.
References10
- plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0…
- plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0…
- plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0…
- plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0…
- plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0…
- plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/…
- plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/…
- plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/…
- plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/…
- plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/…
Metrics
- CVSS 3.1
-
5.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - EPSS — exploit probability
- 1% percentile: 47 · as of 13 November 2026
- CWE
- CWE-200
Could this be exploited in your environment?
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