fix: the normalizesetoptioninput function processes ... in...

[orbisai0security]

Summary

Fix critical severity security issue in dist/echarts.esm.mjs.

Vulnerability

Field	Value
ID	V-001
Severity	CRITICAL
Scanner	multi_agent_ai
Rule	V-001
File	dist/echarts.esm.mjs:20122
Assessment	Likely exploitable

Description: The normalizeSetOptionInput function processes chart configuration options without proper input validation, allowing attackers to inject malicious JavaScript code that executes when charts render.

Evidence

Exploitation scenario: Attacker provides malicious chart configuration options containing JavaScript payloads through user-generated content or API input, leading to XSS or arbitrary code execution.

Scanner confirmation: multi_agent_ai rule V-001 flagged this pattern.

Production code: This file is in the production codebase, not test-only code.

Threat Model Context

This is a Node.js library - vulnerabilities affect downstream consumers who use this package.

Changes

• src/model/Global.ts
• dist/echarts.esm.mjs

Verification

• Build passes
• Scanner re-scan confirms fix
• LLM code review passed

Security Invariant

Property: The security boundary is maintained under adversarial input

Regression test

import { init } from './dist/echarts.esm.mjs';

describe("Chart configuration must not execute arbitrary JavaScript during option normalization", () => {
  const payloads = [
    // Exact exploit case: malicious JavaScript injection via event handlers
    {
      title: {
        text: 'Exploit',
        textStyle: {
          color: 'red'
        }
      },
      series: [{
        type: 'line',
        data: [1, 2, 3],
        label: {
          formatter: () => { throw new Error('Code execution via formatter'); }
        }
      }]
    },
    // Boundary case: prototype pollution attempt
    {
      __proto__: {
        polluted: true
      },
      series: [{
        type: 'bar',
        data: [1, 2, 3]
      }]
    },
    // Valid input (should work normally)
    {
      title: {
        text: 'Valid Chart'
      },
      series: [{
        type: 'line',
        data: [1, 2, 3]
      }]
    }
  ];

  test.each(payloads)("handles input without executing injected code: %p", async (payload) => {
    const container = document.createElement('div');
    document.body.appendChild(container);
    
    try {
      const chart = init(container);
      
      // The security property: setting options should not throw from injected code execution
      // We specifically check that the malicious formatter doesn't execute during setOption
      chart.setOption(payload);
      
      // Additional check: verify chart instance remains functional
      expect(chart).toBeDefined();
      expect(typeof chart.dispose).toBe('function');
      
      chart.dispose();
    } finally {
      document.body.removeChild(container);
    }
  });
});

This test guards against regressions — it's useful independent of the code change above.

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Automated security fix by OrbisAI Security