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CVE-2025-53967

CVE-2025-53967: figma-developer-mcp vulnerable to command injection in get_figma_data tool

Summary

A command injection vulnerability exists in the figma-developer-mcp MCP Server. The vulnerability is caused by the unsanitized use of input parameters within a call to child_process.exec, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges.

The server constructs and executes shell commands using unvalidated user input directly within command-line strings. This introduces the possibility of shell metacharacter injection (|, >, &&, etc.).

Details

The MCP Server exposes tools to perform several figma operations. An MCP Client can be instructed to execute additional actions for example via indirect prompt injection that can lead to command injection by calling vulnerable tools with malicious inputs. Below some example of vulnerable code and different ways to test this vulnerability.

Vulnerable code

The following snippet illustrates the vulnerable code pattern used in the MCP Server’s tooling.

// https://github.com/GLips/Figma-Context-MCP/blob/v0.5.2/src/utils/fetch-with-retry.ts#L35

export async function fetchWithRetry<T>(url: string, options: RequestOptions = {}): Promise<T> {
  try {
    const response = await fetch(url, options);
    ...
  } catch (fetchError: any) {
	...
    const curlHeaders = formatHeadersForCurl(options.headers);
    ...
    const curlCommand = `curl -s -S --fail-with-body -L ${curlHeaders.join(" ")} "${url}"`; //<---

Using MCP Client IDE

Verify the file /tmp/TEST1 does not exist:

cat /tmp/TEST1
cat: /tmp/TEST1: No such file or directory

setup your client IDE

{
  "mcpServers": {
    "Framelink Figma MCP": {
      "command": "npx",
      "args": ["-y", "figma-developer-mcp", "--figma-api-key=TEST", "--stdio"]
    }
  }
}

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CVE-2025-53967

CVE-2025-53967:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
figma-developer-mcp	npm	<= 0.6.2	0.6.3

Technical Details

Vulnerability Intelligence
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Root Cause Analysis

The vulnerability is a command injection in the figma-developer-mcp server. The root cause is the use of child_process.exec in the fetchWithRetry function in src/utils/fetch-with-retry.ts. This function constructs a curl command using a URL that can be controlled by user input. An attacker can inject shell commands into the URL, which will then be executed by the server.

The primary vulnerable function is fetchWithRetry. The patch replaces the vulnerable exec with execFile, which prevents command injection by separating the command from its arguments.

The get_figma_data tool is explicitly mentioned as a vector for this vulnerability. The handler for this tool is the getFigmaData function in src/mcp/tools/get-figma-data-tool.ts. This function takes user input and passes it to the vulnerable fetchWithRetry function. The patch adds input validation to the fileKey parameter in this function.

Similarly, the download-figma-images tool, handled by the downloadFigmaImages function, also takes user input that is used to construct a URL. The patch adds validation to the nodeId parameter in this function, suggesting it was also a potential vector for the command injection vulnerability.

Therefore, a runtime profile during exploitation would likely show getFigmaData or downloadFigmaImages calling fetchWithRetry.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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CVE-2025-53967: figma-developer-mcp vulnerable to command injection in get_figma_data tool

Summary

Details

Vulnerable code

Using MCP Client IDE

CVE-2025-53967:

7.5

-

Basic Information

Basic Information

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Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

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WAF Protection Rules

WAF Rule

Reasoning

7.5

7.5

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

Basic Information

Basic Information

Technical Details

CVE-2025-53967: figma-developer-mcp vulnerable to command injection in get_figma_data tool

Summary

Details

Vulnerable code

Using MCP Client IDE

Using MCP Inspector

Remediation

Impact

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