CVE-2026-91127
CVE-2026-91127 · File Viewer: DOM XSS via unsafe hyperlink schemes in the legacy DOC renderer
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 8.2 · Alta · EPSS 0,4% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
file-viewer
- Versiones
- < 2.3.1: Afectada
Sin corrección publicada
doc
- Versiones
- < 2.3.1: Afectada
Sin corrección publicada
msdoc-viewer
- Versiones
- < 0.2.2: Afectada
Sin corrección publicada
@file-viewer/doc npm
- Intervalos de versiones afectados
- SEMVER: < 2.3.1
Actualiza a 2.3.1
msdoc-viewer npm
- Intervalos de versiones afectados
- SEMVER: < 0.2.2
Actualiza a 0.2.2