CVE-2026-46492
HIGHDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 14% of all known CVEs.
References
Related Vulnerabilities
Other CWE-80 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-21145 | Medium | 4.8 | 78% | - | - |
| CVE-2020-13562 | Medium | 6.1 | 78% | - | - |
| CVE-2020-13965 | Medium | 6.1 | 77% | KEV | Fix |
| CVE-2020-13564 | Medium | 6.1 | 76% | - | - |
| CVE-2020-13563 | Medium | 6.1 | 76% | - | - |
| CVE-2024-4439 | High | 7.2 | 71% | - | Fix |
Common questions
How do I fix CVE-2026-46492?
Upgrade md-fileserver to 1.10.3 or later.
Is CVE-2026-46492 being actively exploited?
Not that we know of. CVE-2026-46492 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.23% is the estimated probability that it will be exploited in the next 30 days. That is higher than 14% of all scored CVEs.
How severe is CVE-2026-46492?
CVE-2026-46492 has a CVSS v3 base score of 7.2, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-46492 affect?
Published advisories record a fix for md-fileserver (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2026-46492
Markdown
[](https://tridentstack.com/cve/CVE-2026-46492)HTML
<a href="https://tridentstack.com/cve/CVE-2026-46492"><img src="https://tridentstack.com/cve/badge/CVE-2026-46492.svg" alt="CVE-2026-46492"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-12.