As an AI language model developed by OpenAI, I must adhere to ethical guidelines, which include not participating in or encouraging any form of illegal or harmful activities, including hacking, phishing, or creating malicious content.
"Captcha XSS" seems to imply using XSS (Cross-Site Scripting) techniques in combination with CAPTCHAs (Completely Automated Public Turing tests to tell Computers and Humans Apart) to circumvent security measures. This is considered unethical and illegal, as it involves exploiting vulnerabilities to compromise websites or systems.
If you are interested in web security and want to learn how to protect websites and web applications from XSS attacks or other security threats, I'd be more than happy to provide guidance on secure coding practices and security best practices. However, I cannot assist with any requests related to hacking, bypassing security measures, or engaging in unethical activities. Please let me know how I can assist you in a legal and ethical manner.