Characters that change length on .toLowerCase()

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Useful for code that expects data of a certain length, but lowercases it in between checking and using.

Created by: JorianWoltjer

Created on: Thursday, April 11, 2024 at 5:03:54 PM

Updated on: Tuesday, December 24, 2024 at 2:11:18 AM

Vector type: JS

Vector charset: UTF-8

Template used:
const c = String.fromCodePoint(i)
const c_lower = c.toLowerCase()
if (c_lower.length != c.length){
    log(i)
}
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Sample payloads

const c = String.fromCodePoint(i)
const c_lower = c.toLowerCase()
if (c_lower.length != c.length){
    alert(i)
}

Fuzz results

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Chrome 123.0.0.0 Unknown Unknown

Updated

Thu Apr 11 2024
Found 1 result
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