xsstc sound familiar? it sound like xss or cross site scripting. it’s kinda like xss i thing, well.. actually xsstc is cross site scripting through css.this is a way to load a css file externally found by Wes Big from tralfmadore.com introduce this technique. but what i understand that i have a lot of question about this technique. but a well said from wesley this technique just give us another option for us to implement.

you can find the POC here , just like Web bigg said. this only gives us another option.