Characters matching RegEx /\w/ui

Chrome logo 65
Firefox logo 65

Regex "word" characters may match Unicode characters that get canonicalized to one of the regular characters too with /ui flags: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_class_escape#w

Created by: JorianWoltjer

Created on: Friday, December 5, 2025 at 10:43:12 AM

Updated on: Friday, December 5, 2025 at 10:43:12 AM


Category: Browser Quirks

Vector visibility: Public

Vector type: JS

Vector charset: UTF-8

Template used:
/\w/ui.test(String.fromCodePoint(i)) && log(i)
Your browser was detected as:
Detecting... Detecting... Detecting... Detecting...

Sample payloads

/\w/ui.test(String.fromCodePoint(i)) && alert(i)

Fuzz results

Chrome logo
Chrome 142.0.0.0 desktop Windows NT 10.0

Updated

Fri Dec 05 2025
Found 65 results
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Firefox logo
Firefox 145.0 desktop Windows NT 10.0

Updated

Fri Dec 05 2025
Found 65 results
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