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CVE-2026-14490— Demi <= 0.0.6 - Unauthenticated Arbitrary Directory Deletion via demi_restore_step AJAX action

Quick assessment

Affected
deveasel Demi – One Click Demo Import, Backup & Site Migration
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Demi是WordPress基金会开源的一款功能强大的 WordPress 演示导入、备份和网站迁移插件。 WordPress Demi 0.0.7及之前版本存在路径遍历漏洞，该漏洞源于插件将HMAC签名密钥和还原令牌存储在可公开访问的上传目录中且未设置保护，未经身份验证的攻击者获取密钥后可通过demi_restore_step AJAX处理程序调用CleanDir::execute()，无路径验证，导致递归删除任意目录。

CVSS 7.5 · High EPSS 0.76% · P55

Affected Version Matrix 1

VendorProduct Version RangeStatus
deveasel Demi – One Click Demo Import, Backup & Site Migration ≤ 0.0.7 affected
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I. Basic Information for CVE-2026-14490

Vulnerability Information
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Vulnerability Title
Demi <= 0.0.6 - Unauthenticated Arbitrary Directory Deletion via demi_restore_step AJAX action
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Demi 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Demi是WordPress基金会开源的一款功能强大的 WordPress 演示导入、备份和网站迁移插件。 WordPress Demi 0.0.7及之前版本存在路径遍历漏洞，该漏洞源于插件将HMAC签名密钥和还原令牌存储在可公开访问的上传目录中且未设置保护，未经身份验证的攻击者获取密钥后可通过demi_restore_step AJAX处理程序调用CleanDir::execute()，无路径验证，导致递归删除任意目录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
deveasel Demi – One Click Demo Import, Backup & Site Migration 0 ~ 0.0.7 -

II. Public POCs for CVE-2026-14490

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III. Intelligence Information for CVE-2026-14490

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Patches & Fixes for CVE-2026-14490 (2)

Vendor Advisories for CVE-2026-14490 (1)

Proof of Concept for CVE-2026-14490 (1)

IV. Related Vulnerabilities

Same product: Demi – One Click Demo Import, Backup & Site Migration
Same vendor: deveasel
Same weakness: CWE-22