What is CVE-2026-46492?

CVE-2026-46492 is a high-severity vulnerability, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 7.2/10. Published 2026-06-09.

How severe is CVE-2026-46492?

High severity. CVSS v3 base score is 7.2 out of 10.

CVE-2026-46492

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 rendere…

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-87 — Improper Neutralization of Alternate XSS Syntax

References

security-advisories@github.com
security-advisories@github.com

Frequently asked questions

What is CVE-2026-46492?: CVE-2026-46492 is a high-severity vulnerability, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 7.2/10. Published 2026-06-09.
How severe is CVE-2026-46492?: High severity. CVSS v3 base score is 7.2 out of 10.