Are Flex/Flash Based applications susceptible to XSS attacks? what are the various ways in which such attacks can happen?

Question

Are Flex/Flash based applications susceptible to XSS attacks,what are the different ways in which the attack can happen and how to prevent/detect such attacks.

Answer 1

Yes. They can be. But it's not as common as with HTML/JavaScript. Here is a good list of XSS Vulnerabilities in Common SWFs.