What are the security differences between XML and JSON?

What are the security differences between XML and JSON?

XML and JSON have different security considerations. XML is more verbose and can be more complex, which may introduce vulnerabilities like XML External Entity (XXE) attacks. JSON, being simpler, is less prone to such issues but can still be vulnerable to Cross-Site Scripting (XSS) if not properly handled.

Can you explain what XXE attacks are?

XXE attacks occur when an XML parser processes external entities, allowing an attacker to read sensitive files or perform other malicious actions. This can happen if user input is not properly validated.

How can I secure my JSON data?

To secure JSON data, ensure proper input validation, use HTTPS for data transmission, and implement Content Security Policy (CSP) to mitigate XSS risks.

Are there libraries that help with XML and JSON security?

Yes, there are libraries like OWASP's Java XML Security for XML and various JSON libraries that include security features, such as JSON Schema for validation.