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Characters allowed before @import

This vector shows which characters are allowed before an @import statement. It uses the new URL fuzzing functionality in Shazzer.

Shazzer Master

Created byhackvertor

Created Aug 6, 2026

Updated Sep 5, 2026

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CategoryCSS Parsing

VisibilityPublic

TypeJS

CharsetUTF-8

Template used:

const style = document.createElement("style");
style.textContent = String.fromCodePoint($[i])+'@import url("https://fuzz.shazzer.co.uk/$[rand]?$[i]");';
document.head.appendChild(style);

Sample payloads

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/8a13uguxh4n?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/7tbwwzkc4ej?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/vga4up8y1zc?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/nitohmbnkgf?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/a6cx5l8b5ci?32");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/194aj74nm4b?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/vcsrbk1ojhf?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/cl0mwfhs7ff?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/sk378vkybt?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/vk5l1ewq1u?32");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/tdy0tp0k7g?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/rpawkrphd6?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/ziihmd7x8g9?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/ywrym6t3as?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/iyvshopzagq?32");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/5ufyogbaqoa?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/aczzsz2pf8q?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/htbm9hjggxa?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/4g84u6t13kp?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/yu308wefsm?32");';
document.head.appendChild(style);