# Get the CAPTCHA challenge HTML html = driver.page_source soup = BeautifulSoup(html, 'html.parser') captcha_div = soup.find('div', {'class': 'g-recaptcha'})
However, the story doesn't end there. Kyd, being a curious researcher, wanted to explore the inner workings of ReCAPTCHA v3 and create a Python solver to demonstrate the vulnerability.
# Extract the CAPTCHA challenge data captcha_data = { 'site_key': captcha_div['data-sitekey'], 'action': 'verify', } recaptcha v3 solver python
import requests from bs4 import BeautifulSoup from selenium import webdriver
// Return a fake solution return { 'response': 'some-fake-solution' }; """ driver.execute_script(js_code) # Get the CAPTCHA challenge HTML html = driver
# Load the webpage with the CAPTCHA challenge driver.get("https://example.com/captcha-page")
The vulnerability, dubbed "ReCAPTCHA v3 bypass," allowed an attacker to bypass the CAPTCHA challenge and gain access to websites that relied on ReCAPTCHA v3 for security. Kyd reported the vulnerability to Google, which promptly patched it. Kyd reported the vulnerability to Google, which promptly
# Inject JavaScript code to manipulate the CAPTCHA challenge js_code = """ // Disable the CAPTCHA challenge const captcha = document.querySelector('.g-recaptcha'); captcha.style.display = 'none';