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CVE-2026-14490

HIGH 7.5 CVSS 3.1
Published
July 28, 2026
Last modified
July 28, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-22
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

The Demi – One Click Demo Import, WP Backup & Site Migration plugin for WordPress is vulnerable to Arbitrary Directory Deletion in all versions up to, and including, 0.0.7. The vulnerability exists because the plugin stores its HMAC signing key and per-step restore token as dotfiles inside a publicly accessible subdirectory of the WordPress uploads folder — without any `.htaccess` or index file protection — and the `demi_restore_step` AJAX handler, registered for unauthenticated callers, explicitly accepts possession of the on-disk signing key as a standalone alternative to WordPress capability and nonce checks; an unauthenticated attacker who retrieves the exposed key can forge a valid signed state envelope to invoke `CleanDir::execute()` with a caller-supplied absolute path that is subject to no allow-list or path-canonicalization check. This makes it possible for unauthenticated attackers to recursively delete arbitrary directories on the server.

Affected WordPress components

  • Demi – One Click Demo Import, Backup & Site Migration Plugin · demi-backup-migration
    Confirmed match Active
    Up to and including 0.0.7
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • deveasel Demi – One Click Demo Import, Backup & Site Migration — Up to and including 0.0.7

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0.0.6/classes/Backup/Tasks/CleanDir.php#L61
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0.0.6/classes/Import/Manager.php#L287
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0.0.6/classes/Import/Manager.php#L50
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/tags/0.0.6/classes/Import/Manager.php#L767
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/classes/Backup/Tasks/CleanDir.php#L61
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/classes/Import/Manager.php#L287
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/classes/Import/Manager.php#L50
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/demi-backup-migration/trunk/classes/Import/Manager.php#L767
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3616690%40demi-backup-migration&new=3616690%40demi-backup-migration
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/63922c28-0cb5-4abe-85ee-20b2cc6f015d?source=cve
  • nvd.nist.gov Official NVD record