Simple CAPTCHA with Cloudflare Turnstile 1.2.2 - 1.42.1 - Unauthenticated Arbitrary Shortcode Execution via Contact Form 7 Field Repopulation

The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin from 1.2.2 before 1.42.3 runs the shortcode parser over the whole rendered Contact Form 7 form, including the values a visitor submitted, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.