CVE-2026-91127— File Viewer 遗留DOC渲染器DOM跨站脚本漏洞
一分钟漏洞结论
影响对象
flyfish-dev file-viewer
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
File Viewer is a browser-native viewer for Office, PDF, CAD, archive, and other files in private and internal web applications. Prior to @file-viewer/doc 2.3.1 and msdoc-viewer 0.2.2, the legacy DOC renderer emitted document-controlled hyperlink targets into g
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一、 漏洞 CVE-2026-91127 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
File Viewer: DOM XSS via unsafe hyperlink schemes in the legacy DOC renderer
来源: CVE Program / CVE List V5
Vulnerability Description
File Viewer is a browser-native viewer for Office, PDF, CAD, archive, and other files in private and internal web applications. Prior to @file-viewer/doc 2.3.1 and msdoc-viewer 0.2.2, the legacy DOC renderer emitted document-controlled hyperlink targets into generated HTML after character escaping but without restricting URL schemes. A crafted legacy DOC file could place javascript:, vbscript:, data:, or another unsafe scheme in a rendered link, and script could execute in the embedding application's origin when a user clicked the link. The fix blocks external document links by default, allows only HTTP(S), mail, telephone, safe relative URLs, and internal bookmarks when external links are explicitly enabled, and applies mount-boundary sanitization as defense in depth. This issue is fixed in @file-viewer/doc 2.3.1 and msdoc-viewer 0.2.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| flyfish-dev | file-viewer | < 2.3.1 | - |
|
| @file-viewer | doc | < 2.3.1 | - |
|
| flyfish-dev | msdoc-viewer | < 0.2.2 | - |
|
二、漏洞 CVE-2026-91127 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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CVE-2026-91127 厂商安全公告 (1)
CVE-2026-91127 厂商页面 (1)
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Release File Viewer v2.3.1 · flyfish-dev/file-viewer · GitHub x_refsource_MISC
IV. Related Vulnerabilities
V. Comments for CVE-2026-91127
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