Arbitrary code execution in VS Code Markdown Preview Enhanced via crafted Markdown file
Markdown Preview Enhanced (Visual Studio Code extension) v0.8.18 is reported vulnerable to an issue where opening/processing a crafted Markdown (.md) file in the extension’s preview context results in attacker-controlled JavaScript execution, which can be leveraged to achieve arbitrary code execution in the context of the user running VS Code/the extension.
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Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Recent activity
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in the VS Code 'Markdown Preview Enhanced' extension that allows JavaScript execution, enabling local port scanning and data exfiltration; affects all versions.
Arbitrary JavaScript execution in the VS Code Markdown Preview Enhanced extension’s preview context, enabling local reconnaissance (e.g., port enumeration) and data exfiltration, potentially chainable depending on environment.
A vulnerability in the VS Code Markdown Preview Enhanced extension enabling JavaScript execution that can be leveraged for local port scanning and potential data exfiltration.
A high-to-critical severity vulnerability affecting the Code Runner Visual Studio Code extension that could allow local file theft and/or remote code execution as described in the report (e.g., via manipulated configuration files).
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.