Michal Zalewski is an internationally recognized information security expert with a long track record of delivering cutting-edge research. He is credited with discovering hundreds of notable security vulnerabilities and frequently appears on lists of the most influential security experts. He is the author of Silence on the Wire (No Starch Press), Google's "Browser Security Handbook," and numerous important research papers.

A comprehensive guide to designing and evaluating secure web applications from Michal Zalewski, one of the world's top security researchers.- Comprehensive and engaging; for beginners and experts alike- By one of the world's top information security experts- Covers both the "how" and the "why" of web security

Preface and Acknowledgments1. Security in the World of Web ApplicationsPart I: Anatomy of the Web2. It Starts with A URL3. Hypertext Transfer Protocol4. Hypertext Markup Language5. Cascading Style Sheets6. Browser-Side Scripts7. Non-HTML Document Types8. Content Rendering with Browser Plug-InsPart II: Browser Security Features9. Content Isolation Logic10. Origin Inheritance11. Life Outside Same-Origin Rules12. Other Security Boundaries13. Content Recognition Mechanisms14. Dealing with Rogue Scripts15. Extrinsic Site PrivilegesPart III: A Glimpse of Things to Come16. New and Upcoming Security Features17. Other Browser Mechanisms of Note18. Common Web VulnerabilitiesEpilogueNotesIndex

Modern web applications are built on a tangle of technologies that have been developed over time and then haphazardly pieced together. Every piece of the web application stack, from HTTP requests to browser-side scripts, comes with important yet subtle security consequences. To keep users safe, it is essential for developers to confidently navigate this landscape.In The Tangled Web, Michal Zalewski, one of the world's top browser security experts, offers a compelling narrative that explains exactly how browsers work and why they're fundamentally insecure. Rather than dispense simplistic advice on vulnerabilities, Zalewski examines the entire browser security model, revealing weak points and providing crucial information for shoring up web application security.You'll learn how to:Perform common but surprisingly complex tasks such as URL parsing and HTML sanitizationUse modern security features like Strict Transport Security, Content Security Policy, and Cross-Origin Resource SharingLeverage many variants of the same-origin policy to safely compartmentalize complex web applications and protect user credentials in case of XSS bugsBuild mashups and embed gadgets without getting stung by the tricky frame navigation policyEmbed or host user-supplied content without running into the trap of content sniffingFor quick reference, "Security Engineering Cheat Sheets" at the end of each chapter offer ready solutions to problems you're most likely to encounter. With coverage extending as far as planned HTML5 features, The Tangled Web will help you create secure web applications that stand the test of time.