Is CVE-2026-11422 in the CISA KEV catalog?

No. CVE-2026-11422 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-11422?

CVE-2026-11422 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2026-11422?

CVE-2026-11422 has an EPSS score of 0.16% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-11422?

No published fix for CVE-2026-11422 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-11422

HIGH

7.1

CVSS v3

NVD

Description

Markdown Preview Enhanced 0.8.x with crossnote engine 0.9.28 contains a code injection vulnerability in the WaveDrom rendering pipeline that allows attackers to execute arbitrary JavaScript by embedding malicious content in a wavedrom fenced code block within a crafted Markdown document. Attackers can exploit the unsanitized passing of wavedrom block content to window.eval() in the VS Code webview context to abuse the extension's message passing and invoke arbitrary file writes on the local filesystem.

CWE-95

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploit Intelligence

0.16%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references4

Embed a live status badge for CVE-2026-11422

Markdown

[![CVE-2026-11422](https://tridentstack.com/cve/badge/CVE-2026-11422.svg)](https://tridentstack.com/cve/CVE-2026-11422)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-11422"><img src="https://tridentstack.com/cve/badge/CVE-2026-11422.svg" alt="CVE-2026-11422"></a>

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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 2026-06-08.