CVE-2022-45025

CVE-2022-45025 Command injection via PDF import in Markdown Preview Enhanced VSCode, Atom Description The Mume markdown tool library was vulnerable to command injection due to use of spawn command with shell: true option. This could allow an attacker to achieve arbitary code execution by tricking...

CVE-2026-54566

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.29, Markdown Preview Enhanced evaluates repository-controlled .crossnote/config.js and .crossnote/parser.js files with vm.runInNewContext, which does not provide a security boundary from the Node.js hos...

CVE-2026-54703

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, the crossnote.updateMarkdown command in Markdown Preview Enhanced accepts an arbitrary URI and attacker-controlled content, then passes them to vscode.workspace.fs.writeFile without validating that...

CVE-2026-54702

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, the webview message handler in src/preview-provider.ts accepts an attacker-controlled command value and attacker-controlled args, constructs a command in the crossnote namespace, and invokes...

CVE-2026-54525

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.28, Markdown Preview Enhanced preview-link handling passes a decoded, Markdown-controlled link target to a Windows file-opening helper that invokes childprocess.exec with the start command. When a Windo...

EUVD-2026-101585

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, the webview message handler in src/preview-provider.ts accepts an attacker-controlled command value and attacker-controlled args, constructs a command in the crossnote namespace, and invokes...

CVE-2026-54702

The Markdown Preview Enhanced extension for Visual Studio Code is vulnerable to Blind Command Dispatch in versions prior to 0.8.30 . The webview message handler in src/preview-provider.ts fails to perform allowlist or type validation on attacker-controlled command values and arguments within the ...

CVE-2026-54702 Markdown Preview Enhanced: Blind Command Dispatch via Unvalidated Webview Message Handler

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, the webview message handler in src/preview-provider.ts accepts an attacker-controlled command value and attacker-controlled args, constructs a command in the crossnote namespace, and invokes...

CVE-2026-54701 Markdown Preview Enhanced: Stored XSS via Unsanitized `.crossnote/head.html` Injection in Webview

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, Markdown Preview Enhanced reads repository-controlled .crossnote/head.html content and passes it through resolvePathsInHeader before inserting it into the head of the preview webview document withou...

CVE-2026-54701

The Markdown Preview Enhanced extension for Visual Studio Code is vulnerable to Stored XSS in versions prior to 0.8.30 . The extension improperly handles repository-controlled content from .crossnote/head.html by passing it through resolvePathsInHeader and inserting it into the webview head witho...

CVE-2026-54703

The Markdown Preview Enhanced extension for Visual Studio Code is vulnerable to an arbitrary file write in versions prior to 0.8.30 . The root cause is that the _crossnote.updateMarkdown command accepts an arbitrary URI and attacker-controlled content, passing them to vscode.workspace.fs.writeFil...

CVE-2026-54703 Markdown Preview Enhanced: Arbitrary File Write via updateMarkdown Command Without Path Validation

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.30, the crossnote.updateMarkdown command in Markdown Preview Enhanced accepts an arbitrary URI and attacker-controlled content, then passes them to vscode.workspace.fs.writeFile without validating that...

EUVD-2026-101582

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.29, Markdown Preview Enhanced evaluates repository-controlled .crossnote/config.js and .crossnote/parser.js files with vm.runInNewContext, which does not provide a security boundary from the Node.js hos...

CVE-2026-54566 Markdown Preview Enhanced: Remote Code Execution via VM Sandbox Escape in `.crossnote/config.js` and `.crossnote/parser.js`

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.29, Markdown Preview Enhanced evaluates repository-controlled .crossnote/config.js and .crossnote/parser.js files with vm.runInNewContext, which does not provide a security boundary from the Node.js hos...

CVE-2026-54566 Markdown Preview Enhanced: Remote Code Execution via VM Sandbox Escape in `.crossnote/config.js` and `.crossnote/parser.js`

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.29, Markdown Preview Enhanced evaluates repository-controlled .crossnote/config.js and .crossnote/parser.js files with vm.runInNewContext, which does not provide a security boundary from the Node.js hos...

CVE-2026-54566

The Markdown Preview Enhanced extension for Visual Studio Code is vulnerable to Remote Code Execution (RCE) in versions prior to 0.8.29 . The root cause is the use of vm.runInNewContext to evaluate repository-controlled .crossnote/config.js and .crossnote/parser.js files, which fails to provide a...

CVE-2026-54566 Markdown Preview Enhanced: Remote Code Execution via VM Sandbox Escape in `.crossnote/config.js` and `.crossnote/parser.js`

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.29, Markdown Preview Enhanced evaluates repository-controlled .crossnote/config.js and .crossnote/parser.js files with vm.runInNewContext, which does not provide a security boundary from the Node.js hos...

CVE-2026-54525

The Markdown Preview Enhanced extension for Visual Studio Code is vulnerable to OS Command Injection prior to version 0.8.28 . The root cause is the improper neutralization of special elements in the preview-link handling logic, where a decoded, Markdown-controlled link target is passed to a Wind...

CVE-2026-54525 Markdown Preview Enhanced: One Click RCE via Markdown Link Command Injection on Windows

Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.28, Markdown Preview Enhanced preview-link handling passes a decoded, Markdown-controlled link target to a Windows file-opening helper that invokes childprocess.exec with the start command. When a Windo...

PT-2026-68364

Name of the Vulnerable Software and Affected Versions Markdown Preview Enhanced versions prior to 0.8.28 Description Improper neutralization of special elements in the preview-link handling of the Markdown Preview Enhanced extension for Visual Studio Code allows remote code execution. When a user...