How a simple blog comment can hijack your web app. Stored DOM XSS combines the danger of persistent input with silent client-side execution.
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Disclaimer:
The techniques described in this document are intended solely for ethical use and educational purposes. Unauthorized use of these methods outside approved environments is strictly prohibited, as it is illegal, unethical, and may lead to severe consequences.It is crucial to act responsibly, comply with all applicable laws, and adhere to established ethical guidelines. Any activity that exploits security vulnerabilities or compromises the safety, privacy, or integrity of others is strictly forbidden.
Stored DOM XSS is a form of cross-site scripting where malicious scripts are persistently stored on the server, commonly in a database or similar backend — and are later inserted into a page’s Document Object Model (DOM) by client-side JavaScript without proper sanitization.