CVE-2026-11422 — Markdown Preview Enhanced 0.8.x Code Injection via WaveDrom Rendering
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 arbitrar…
Published: 2026-06-05 · CVSS: 8.4 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7