CVE-2026-25500
Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href
5.4
MEDIUM
CVSS 3.1
EPSS 0.22%
描述
Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory` generates an HTML directory index where each file entry is rendered as a clickable link. If a file exists on disk whose basename starts with the `javascript:` scheme (e.g. `javascript:alert(1)`), the generated index contains an anchor whose `href` is exactly `javascript:alert(1)`. Clicking the entry executes JavaScript in the browser (demonstrated with `alert(1)`). Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue.
如何修補 CVE-2026-25500
要修補 CVE-2026-25500,請將受影響套件升級到下列已修補版本。
- —升級至 2.1.4-3+deb11u5 或更新版本
- —升級至 2.2.22 或更新版本
CVE-2026-25500 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)
- from 0, < 2.1.4-3+deb11u5
- from 0, < 2.2.22
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |