View source for Talk:Grails Secure Code Review Cheat Sheet

* HTML/Javascript/URL Encode stuff as appropriate (see Manico's
presentation on encoding properly for the context).
* There are lots of built-in model validation constraints available to you
- use them. And not just "it must not be null" or "it must be less than 20
characters", but real format validation.
* Use useToken on Forms
* Do all the stuff listed in
http://grails.org/doc/latest/guide/single.html#security - it *really* is
pretty good, including XSRF prevention, although I think the "Guessable
ID's" section could use some fleshing out (make a map of the objects the
user should be able to access, check against that, or don't send PK's at
all - send keys into the map).