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Characters not urlencoded when using the shema part of the URL

This vector shows which characters are not encoded in the schema part of the URL.

Created byd0ge

Created Sep 24, 2024

Updated May 27, 2025

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CategoryURL Handling

VisibilityPublic

TypeJS

CharsetUTF-8

Code used before fuzz:

const anchor = document.createElement('a');

Template used:

anchor.href='http://example.com';0x0D
anchor.protocol = 'http' + String.fromCodePoint($[i]) + ':';0x0D
if(!/http:/.test(anchor.protocol+''))log($[i])

Sample payloads

anchor.href='http://example.com';0x0D
anchor.protocol = 'http' + String.fromCodePoint(83) + ':';0x0D
if(!/http:/.test(anchor.protocol+''))alert(83)

anchor.href='http://example.com';0x0D
anchor.protocol = 'http' + String.fromCodePoint(115) + ':';0x0D
if(!/http:/.test(anchor.protocol+''))alert(115)