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ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

During code review of an e-commerce site, you see shipping addresses are accepted unchanged, stored in the database, logged to text files, and later HTML-encoded in pages. Testers exploited this by adding CRLF characters that forged extra log entries. Which secure-coding action best removes the vulnerability in every sink?

  • Enable detailed stack traces in error responses so developers can spot malicious input during testing.

  • Apply server-side allow-list input validation that rejects control characters in the address before any further processing.

  • Add client-side JavaScript that strips script tags from the address field before submission.

  • Obfuscate the logging component to hide the log format from potential attackers.

ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Implementation
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