Characters allowed in the protocol that still resolve host name
68
68
68This vector demonstrates which characters are allowed in the protocol section of the URL but still resolve to example.com. Based on the following tweet: https://x.com/0xMstar/status/1918577367062331826
Created by: hackvertor
Created on: Tuesday, May 6, 2025 at 11:19:01 AM
Updated on: Thursday, May 8, 2025 at 7:07:03 AM
Vector type: JS
Vector charset: UTF-8
Template used:
let chr = String.fromCodePoint($[i]);
new URL("foo"+chr+"bar://example.com").host === "example.com" && log($[i])Your browser was detected as:
Detecting... Detecting... Detecting... Detecting...
Sample payloads
let chr = String.fromCodePoint(9);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(9)let chr = String.fromCodePoint(10);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(10)let chr = String.fromCodePoint(13);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(13)let chr = String.fromCodePoint(43);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(43)let chr = String.fromCodePoint(45);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(45)let chr = String.fromCodePoint(46);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(46)let chr = String.fromCodePoint(48);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(48)let chr = String.fromCodePoint(49);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(49)let chr = String.fromCodePoint(50);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(50)let chr = String.fromCodePoint(51);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(51)let chr = String.fromCodePoint(52);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(52)let chr = String.fromCodePoint(53);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(53)let chr = String.fromCodePoint(54);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(54)let chr = String.fromCodePoint(55);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(55)let chr = String.fromCodePoint(56);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(56)let chr = String.fromCodePoint(57);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(57)let chr = String.fromCodePoint(65);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(65)let chr = String.fromCodePoint(66);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(66)let chr = String.fromCodePoint(67);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(67)let chr = String.fromCodePoint(68);
new URL("foo"+chr+"bar://example.com").host === "example.com" && alert(68)Fuzz results
Chrome 136.0.0.0 desktop macOS 10.15.7
Updated
Tue May 06 2025
Found 68 results
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Firefox 138.0 desktop macOS 10.15
Updated
Tue May 06 2025
Found 68 results
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Safari 18.4 desktop macOS 10.15.7
Updated
Tue May 06 2025
Found 68 results
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