Security Challenges — ASecurityGuru

Quick-fire quiz: click the vulnerable line or identify the vulnerability type in short, real code snippets. SQL injection, XSS, SSRF, JWT bypass, and more.

~5 minBeginner-Advanced10 questions

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Secure Coding Challenge

Review a full, realistic file the way you would in a real code review. Find the vulnerability, then choose the correct fix from several plausible-looking options.

~10 minIntermediate-AdvancedFull files

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Find the CVE

Given a code snippet or a description of unusual behavior, identify which real, disclosed CVE it matches. Sharpens pattern recognition for real-world vulnerability research.

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Security+ Practice Test

Timed CompTIA Security+ (SY0-701) practice test covering all 5 exam domains. Get a domain-by-domain score breakdown to focus your study time.

20 min timerAll 5 domainsOriginal questions

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Security Fundamentals Quiz

No code — just concepts. CIA Triad, OWASP Top 10, CVSS scoring, Zero Trust, and the frameworks every security engineer should know cold.

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CISSP Practice Test

Timed practice test covering all 8 CISSP domains, with the same domain-by-domain scoring approach as the Security+ test.

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Why practice this way?

Real code, not abstract trivia — the same pattern-recognition skill interviewers actually test for

Every answer includes a full explanation and a real, working fix — not just "correct" or "wrong"

Sourced from real vulnerable code in Raghu's GitHub repos and common OWASP/CWE patterns