From OWASP

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific web application security topics. These cheat sheets were created by various application security professionals who have expertise in specific topics. We hope that the OWASP Cheat Sheet Series provides you with excellent security guidance in an easy to read format.

The Cheat Sheet Series project has been moved to GitHub!

Please visit the OWASP Cheat Sheet Series official site to access to the cheat sheets.