CVE-2026-46492 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-46492MEDIUM

commenthol md-fileserver — md-fileserver: Stored/Reflected XSS when viewing Markdown (raw HTML allowed)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  C  L  L  N    6.1   .0023   14.3     —

AFFECTED
  Product        Versions    Fixed
  md-fileserver  < 1.10.3 –  —

TIMELINE
  May 14  Reserved by GitHub_M
  Jun 9   EXPLOIT PUBLISHED — CVE-2026-46492 (commenthol md-fileserver). Public exploit reference added.
  Jun 9   Published (CNA: GitHub_M)

CWE-80, CWE-87 · CNA: GitHub_M · CVSS v3.1 · 2 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 14, 2026	Reserved	Reserved by GitHub_M
June 9, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-46492 (commenthol md-fileserver). Public exploit reference added.
June 9, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
commenthol	md-fileserver	—	< 1.10.3	—

Weaknesses

CWE-80 · CWE-87

References (2)

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

Authoritative record: CVE-2026-46492 at cve.org

Vendors: commenthol

Weaknesses: CWE-80 · CWE-87

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-46492 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.