HTML5 Security Cheatsheet

This is the new home of the H5SC or HTML5 Security Cheatsheet. Here you will find two things:

• A collection of HTML5 related XSS attack vectors
• A set of useful files for XSS testing
• A set of formerly hidden features useful for XSS testing

The XSS Vectors

The collection of XSS vectors can be found here: https://html5sec.org/

Useful files

We published a list of files useful for XSS testing in various situations. Currently the following files are available:

• https://html5sec.org/test.asf
• https://html5sec.org/test.avi
• https://html5sec.org/test.css
• https://html5sec.org/test.dtd
• https://html5sec.org/test.eml
• https://html5sec.org/test.evt
• https://html5sec.org/test.gif
• https://html5sec.org/test.hlp
• https://html5sec.org/test.hta
• https://html5sec.org/test.htc
• https://html5sec.org/test.html
• https://html5sec.org/test.jar
• https://html5sec.org/test.js
• https://html5sec.org/test.json
• https://html5sec.org/test.mpeg
• https://html5sec.org/test.pdf
• https://html5sec.org/test.sct
• https://html5sec.org/test.svg
• https://html5sec.org/test.swf
• https://html5sec.org/test.vbs
• https://html5sec.org/test.vml
• https://html5sec.org/test.wbxml
• https://html5sec.org/test.xbl
• https://html5sec.org/test.xdr
• https://html5sec.org/test.xml
• https://html5sec.org/test.xsl
• https://html5sec.org/test.xxe
• https://html5sec.org/test.zip

Pull requests welcome, we store the files in the /attachments subfolder.

Hidden Features

The H5SC currently has two hidden features

• An RSS mode to test feed readers: https://html5sec.org/
• A JavaScript function to retrun all vectors as string, isolated and numbered: Go here and execute vectors()