Demi <= 0.0.8 - Unauthenticated Information Exposure to Arbitrary Directory Copy
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Demi – One Click Demo Import, Backup & Site Migration | <= 0.0.8 | 0.0.9 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-200- Platform
- WordPress
- Package
Demi – One Click Demo Import, Backup & Site Migration- Disclosed
- 27.07.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 61ee1857-aa85-4d37-a347-a1f59c95cbff - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Demi – One Click Demo Import, Backup & Site Migration
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 07.2026 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
- Medium 1
Disclosures per year
- 2026: 3
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