CVE-2026-14490 json
Demi <= 0.0.6 - Unauthenticated Arbitrary Directory Deletion via demi_restore_step AJAX action
published 2026-07-28 3 mo ago modified 2026-07-28 3 mo ago also EUVD-2026-49692
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- deveasel Demi – One Click Demo Import, Backup & Site Migration
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/63922c28-0cb5-4abe-85ee-20b2cc6f015d?source=cve
- plugins.trac.wordpress.org /browser/demi-backup-migration/trunk/classes/Backup/Tasks/CleanDir.php#L61
- plugins.trac.wordpress.org /browser/demi-backup-migration/trunk/classes/Import/Manager.php#L767
- plugins.trac.wordpress.org /browser/demi-backup-migration/trunk/classes/Import/Manager.php#L50
- plugins.trac.wordpress.org /browser/demi-backup-migration/trunk/classes/Import/Manager.php#L287
- plugins.trac.wordpress.org /browser/demi-backup-migration/tags/0.0.6/classes/Backup/Tasks/CleanDir.php#L61
- plugins.trac.wordpress.org /browser/demi-backup-migration/tags/0.0.6/classes/Import/Manager.php#L767
- plugins.trac.wordpress.org /browser/demi-backup-migration/tags/0.0.6/classes/Import/Manager.php#L50
- plugins.trac.wordpress.org /browser/demi-backup-migration/tags/0.0.6/classes/Import/Manager.php#L287
- plugins.trac.wordpress.org /changeset?reponame=&old=3616690%40demi-backup-migration&new=3616690%40demi-backup-migration
Sources
- CVE List CVE-2026-14490
- NVD CVE-2026-14490
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.