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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/ofteucv5zx?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/c27yf8u0c7k?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/50i0ewlvm3c?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/sv2re6zvkuc?13");';
document.head.appendChild(style);

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

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/pe1zm91bnla?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/zbojdmiw67?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/0314aj1dqk9h?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/jd7yfq6vmf?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/45kfjk3bdnq?32");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/jmvavj5l4x?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/6otj5q3jx8c?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/rf5qn0jq0wg?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/eb7f74y7y4j?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/2ld4m5lghky?32");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(9)+'@import url("https://fuzz.shazzer.co.uk/jt2wiykfnph?9");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(10)+'@import url("https://fuzz.shazzer.co.uk/bxh8jfa8cc?10");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(12)+'@import url("https://fuzz.shazzer.co.uk/lj2bzgnvrfi?12");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(13)+'@import url("https://fuzz.shazzer.co.uk/ua56ijkjxso?13");';
document.head.appendChild(style);

const style = document.createElement("style");
style.textContent = String.fromCodePoint(32)+'@import url("https://fuzz.shazzer.co.uk/48z2o3ygjzn?32");';
document.head.appendChild(style);