CVE-2026-14490
高CVE-2026-14490 是什么？
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.
CVSS Vector Breakdown
CVSS 3.1Exploitable remotely over the network without requiring access to the local system.
No special conditions required. Exploit can be performed reliably and repeatedly.
No authentication required. Any anonymous user can exploit this vulnerability.
No user interaction required. Exploit runs without any victim action.
Exploiting the vulnerability only affects the vulnerable component itself.
Complete loss of confidentiality. All data on the component may be exposed.
No integrity impact. Data cannot be modified.
No availability impact. Service remains fully operational.
常见问题
CVE-2026-14490 的 CVSS 评分为 7.5/10，评级为 High。 这是高严重性漏洞，应尽快修补。
CVSS（通用漏洞评分系统）将漏洞严重性评为 0.0 至 10.0。CVE-2026-14490 得分为 7.5/10（High）。9.0–10.0 为严重，7.0–8.9 为高危，4.0–6.9 为中危，4.0 以下为低危。
受 CVE-2026-14490 影响的已确认设备列表显示在上方 受影响设备部分。请将您的固件版本与供应商安全公告进行比对，并应用最新补丁。
应用供应商提供的最新固件或软件更新。查看上方参考资料部分获取官方公告和补丁说明。如果没有补丁，请考虑禁用受影响的功能或将设备与不受信任的网络隔离。