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Characters allowed before image-set function

This vector shows what characters are allowed before the image-set() function with a nested url() function.

Shazzer Master

Created byhackvertor

Created Aug 6, 2026

Updated Sep 5, 2026

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CategoryCSS Parsing

VisibilityPublic

TypeXSS

CharsetUTF-8

Template used:

<div style=background:$[chr]image-set(url(https://fuzz.shazzer.co.uk/$[rand]?$[i]#))>

Sample payloads

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/ibbtt9wjztc?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/0rf3ob6upcw?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/gnhy3bv816o?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/ur2ekac942?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/8rlq8omluw8?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/bxjmeywy1ha?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/aalyrc1tu8m?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/6z453hd136m?92#))>

<div style=background:\image-set(url(https://fuzz.shazzer.co.uk/fbt40da0acl?92#))>