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OWASP - OWASP Top Ten Cheat Sheet

Issue	Presentation	Solution	Comments
Injection	Render	Set a correct content type.	All SQL Injection is due to dynamic SQL queries. Strongly consider prohibiting dynamic SQL queries.
		Set safe character set (UTF-8).	Canonicalize using correct character set.
		Set correct locale.
	On Submit:	Enforce input field type and lengths.	Positive input validation using correct character set.
		Validate fields and provide feedback.
		Ensure option selects and radio contain only sent values.
Weak authentication and session management	Render	Validate user is authenticated.
		Validate role is sufficient for this view.	Validate role is sufficient to create, read, update, or delete data.
		Set “secure” and “HttpOnly” flags for session cookies.
		Send CSRF token with forms.
XSS	Render	Set correct content type.
		Set safe character set (UTF-8).
		Set correct locale.
		Output encode all user data as per output context.
		Set input constraints.