CVE-2026-53943
Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header
描述
Ghost is a Node.js content management system. From until 6.37.0, when Ghost is behind a shared caching layer that results in cached content being shared between different visitors, an unauthenticated user could send an x-ghost-preview header that altered the rendered frontend response. In affected cache configurations, that response could be stored and served to subsequent visitors requesting the same page, allowing cache poisoning of request-specific preview output. When running Ghost's frontend and admin panel on the same domain this could be used to take over staff user accounts. When running these on different domains staff accounts have no exposure. This vulnerability is fixed in 6.37.0.
如何修補 CVE-2026-53943
要修補 CVE-2026-53943,請將受影響套件升級到下列已修補版本。
- —升級至 6.37.0 或更新版本
- —升級至 6.37.0 或更新版本
CVE-2026-53943 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 4.0.0, < 6.37.0
- >= 4.0.0, < 6.37.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |