DOM based XSS Prevention Cheat Sheet
When looking at XSS (Cross-Site Scripting), there are three generally recognized forms of XSS. Reflected, Stored, and DOM Based XSS. The XSS Prevention Cheatsheet does an excellent job of addressing Reflected and Stored XSS. This cheatsheet addresses DOM (Document Object Model) based XSS and is an extension (and assumes comprehension of) the XSS Prevention Cheatsheet.
In order to understand DOM based XSS, one needs to see the fundamental difference between Reflected and Stored XSS when compared to DOM based XSS. Reflected and Stored XSS are server side execution issues while DOM based XSS is a client (browser) side execution issue. All of this code originates on the server, which means it is the application owner's responsibility to make it safe from XSS, regardless of the type of XSS flaw it is.
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OpSec Cheat Sheets (Defender)
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