News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Smashing Magazine:
Keeping Web Users Safe By Sanitizing Input Data
January 12, 2011 @ 12:49:13

On the Smashing Magazine site today Phillip Tellis has a new article advocating a common thread in PHP application development (really, any application development) - sanitizing user input to help keep you and your application's user safe.

In this article, I'm joined by my colleague Peter (evilops) Ellehauge in looking at input filtering in more depth while picking on a few real examples that we've seen around the web. As you'll see from the examples below, insufficient input validation can result in various kinds of code injection including XSS, and in some cases can be used to phish user credentials or spread malware.

Several examples are included show things like unfiltered use of PHP's superglobals, incorrectly quoted HTML attributes and some commonly overlooked areas like title tag injection and javascript analytics handling. They also talk about the different contexts the data might need to be filtered on - HTML, attributes, URLs, javascript, CSS and others.

0 comments voice your opinion now!
security sanitize data input tutorial output filter


blog comments powered by Disqus

Similar Posts

HowTo Forge: How To Set Up A Facebook RSS Feed Reader

Ask About PHP: Codeigniter: Handling errors

DevShed: Abstract Classes in PHP - Setting Up a Concrete Example

DevShed: Using the Observer Design Pattern with Static Data in PHP 5

SitePoint PHP Blog: Message Queues: Comparing Beanstalkd, IronMQ and Amazon SQS


Community Events

Don't see your event here?
Let us know!


php7 community podcast release series voicesoftheelephpant interview library framework api laravel5 unittest example introduction version laravel extension video language opinion

All content copyright, 2015 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework