Q. Why is web application security challenging, especially in the context of complex ecosystems?

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Q. What distinguishes stored/persistent XSS attacks from reflected XSS attacks?

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Q. In the context of a message board, how does a stored XSS attack unfold?

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Q. How can a stored XSS attack be used to perform a more malicious action?

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Q. What is the primary objective of cross-site request forgery (CSRF/XSRF) attacks?

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Q. How do developers commonly protect web applications against XSRF attacks?

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Q. What distinguishes server-side request forgery (SSRF) attacks from cross-site request forgery (CSRF/XSRF) attacks?

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Q. In a clickjacking attack, what might an attacker display over a link to modify browser security settings?

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Q. Why are stored XSS attacks considered persistent?

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Q. How can developers mitigate the risk of stored XSS attacks on a message board?

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Q. What is the potential risk associated with source code comments in web applications?

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Q. Why is error handling important in web application development?

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Q. What role does error handling play in the defense-in-depth approach to security?

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Q. How can overly verbose error handling routines pose a risk to web application security?

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Q. What is the term for including usernames and passwords in source code, creating a potential backdoor vulnerability?

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Q. In web application development, what risk is associated with accidentally disclosing code containing API keys or access credentials?

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Q. Why is it problematic to include a hard-coded maintenance account with a backdoor password in web application source code?

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Q. What can developers do to mitigate the risk of hard-coded credentials being disclosed in public repositories?

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Q. What precaution should developers take regarding source code comments in web applications?

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Q. Why might source code comments include security details that should remain secret?

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