CVE-2026-46492

Description

md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including <script> tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution in the context of the affected domain. This issue has been patched in version 1.10.3.

Weakness classification

• security-advisories@github.com: CWE-80

Primary references

• security-advisories@github.com — Release Notes
• security-advisories@github.com — Vendor Advisory, Exploit
• 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Vendor Advisory, Exploit