CVE-2026-46492

Description

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

Description (MITRE) cveawg.mitre.org

Pulled from cveawg.mitre.org/api/cve/CVE-2026-46492 on 2026-07-30. Shown when MITRE's text differs from the cvelistV5 mirror.

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.

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

7.2 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Effective score

7.2 / 10 HIGH source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

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Source

https://www.tenable.com/cve/CVE-2026-46492

Linked Threat

CVE-2026-46492 — CVE-2026-46492

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-35496

EUVD enrichment is queued; refresh the page in a few seconds.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

MITRE references (2) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

• https://github.com/commenthol/md-fileserver/releases/tag/v1.10.3 x_refsource_MISC
• https://github.com/commenthol/md-fileserver/security/advisories/GHSA-32q2-hhr5-6qvv x_refsource_CONFIRM

Web references (2)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://nvd.nist.gov/vuln/detail/CVE-2026-46492 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-46492 tenable:www.cve.org

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• CISA Warns of Exploited Microsoft Defender 0-Day Flaws
  web:cyberpress.org

  The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

  2026-05-26 03:00 UTC
• Security Update Guide - Loading - Microsoft
  web:msrc.microsoft.com

  Security Updates Acknowledgements

  2026-05-26 03:00 UTC
• About the security content of iOS 26.2 and iPadOS 26.2
  web:support.apple.com

  This document describes the security content of iOS 26.2 and iPadOS 26.2.

  2026-05-26 03:00 UTC
• Microsoft Defender CVE-2026-41091 & CVE-2026-45498
  web:thecyberexpress.com

  Microsoft confirms active exploitation of CVE - 2026 -41091 and CVE - 2026 -45498 in Defender, with CVSS-rated risks, KEV listing, and urgent patches issued.

  2026-05-26 03:00 UTC
• Microsoft Warns of Two Actively Exploited Defender Vulnerabilities
  web:thehackernews.com

  Active Defender exploits hit CVE - 2026 -41091 and CVE - 2026 -45498; June 3 fixes reduce SYSTEM and DoS risk.

  2026-05-26 03:00 UTC
• Google Translate
  web:translate.google.com

  Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.

  2026-05-26 03:00 UTC
• April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
  web:www.crowdstrike.com

  Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

  2026-05-26 03:00 UTC
• Grammarly: Free AI Writing Assistance
  web:www.grammarly.com

  Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.

  2026-05-26 03:00 UTC
• Microsoft Defender vulnerabilities exploited in the wild (CVE-2026 ...
  web:www.helpnetsecurity.com

  Attackers are actively exploiting two Microsoft Defender vulnerabilities ( CVE - 2026 -41091 and CVE - 2026 -45498), Microsoft acknowledged.

  2026-05-26 03:00 UTC
• Oracle Critical Patch Update Advisory - April 2026
  web:www.oracle.com

  This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

  2026-05-26 03:00 UTC

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