CVE Catalog

CVE-2026-46492

HighCVSS 7.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

12th percentile - higher than 12% of all known CVEs

Summary

In md-fileserver prior to version 1.10.3, an XSS vulnerability exists in the Markdown rendering logic. User-supplied Markdown content with embedded raw HTML, including <script> tags, is processed and injected into the page without sanitization, allowing arbitrary JavaScript execution in the affected domain.

Risk Assessment

An attacker can steal session data, redirect users to malicious sites, or perform other unauthorized actions within the application context.

Recommendation

Immediately update md-fileserver to version 1.10.3 or later.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS