For testing template injection on a page

test_template_injection_on_input_field_using_selenium.js

const { Builder, By, Key, until } = require('selenium-webdriver');
const chrome = require('selenium-webdriver/chrome');

const templateInjectionPayloads = [
  '{{7*7}}', // Basic expression evaluation. Should return 49 if template injection is possible
  '${7*7}', // This is for template engines that use $ like in AngularJS
  '<%= 7 * 7 %>', // This is for EJS style templates
  // Add more payloads to test different template engines
];

const url = 'http://your-website.com';
const inputField = 'input#your-input-field-id';

async function testTemplateInjection() {
  let driver = await new Builder().forBrowser('chrome').setChromeOptions(new chrome.Options().headless()).build();
  try {
    await driver.get(url);
    for (let payload of templateInjectionPayloads) {
      await driver.findElement(By.css(inputField)).clear();
      await driver.findElement(By.css(inputField)).sendKeys(payload, Key.RETURN);
      // You will need to implement the code to check if the payload was successful
    }
  } finally {
    await driver.quit();
  }
}

testTemplateInjection();