CVE-2026-46492

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.

• CWE-80
• CWE-87

• https://github.com/commenthol/md-fileserver/releases/tag/v1.10.3Release Notes
• https://github.com/commenthol/md-fileserver/security/advisories/GHSA-32q2-hhr5-6qvvVendor Advisory, Exploit
• https://github.com/commenthol/md-fileserver/security/advisories/GHSA-32q2-hhr5-6qvvVendor Advisory, Exploit

Published

Jun 9, 2026

Last Modified

Aug 12, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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