Characters that cause exceptions when URL encoded

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This vector demonstrates which characters cause encodeURIComponent to throw an exception when attempting to URL encode.

Created by: hackvertor

Created on: Thursday, October 3, 2024 at 11:22:50 AM

Updated on: Thursday, November 21, 2024 at 5:00:10 AM

Vector type: JS

Vector charset: UTF-8

Template used:
try{
   encodeURIComponent(String.fromCodePoint($[i]))
} catch {
   log($[i]);
} 
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Sample payloads

try{
   encodeURIComponent(String.fromCodePoint(55296))
} catch {
   alert(55296);
} 
try{
   encodeURIComponent(String.fromCodePoint(55297))
} catch {
   alert(55297);
} 
try{
   encodeURIComponent(String.fromCodePoint(55298))
} catch {
   alert(55298);
} 
try{
   encodeURIComponent(String.fromCodePoint(55299))
} catch {
   alert(55299);
} 
try{
   encodeURIComponent(String.fromCodePoint(55300))
} catch {
   alert(55300);
} 
try{
   encodeURIComponent(String.fromCodePoint(55301))
} catch {
   alert(55301);
} 
try{
   encodeURIComponent(String.fromCodePoint(55302))
} catch {
   alert(55302);
} 
try{
   encodeURIComponent(String.fromCodePoint(55303))
} catch {
   alert(55303);
} 
try{
   encodeURIComponent(String.fromCodePoint(55304))
} catch {
   alert(55304);
} 
try{
   encodeURIComponent(String.fromCodePoint(55305))
} catch {
   alert(55305);
} 
try{
   encodeURIComponent(String.fromCodePoint(55306))
} catch {
   alert(55306);
} 
try{
   encodeURIComponent(String.fromCodePoint(55307))
} catch {
   alert(55307);
} 
try{
   encodeURIComponent(String.fromCodePoint(55308))
} catch {
   alert(55308);
} 
try{
   encodeURIComponent(String.fromCodePoint(55309))
} catch {
   alert(55309);
} 
try{
   encodeURIComponent(String.fromCodePoint(55310))
} catch {
   alert(55310);
} 
try{
   encodeURIComponent(String.fromCodePoint(55311))
} catch {
   alert(55311);
} 
try{
   encodeURIComponent(String.fromCodePoint(55312))
} catch {
   alert(55312);
} 
try{
   encodeURIComponent(String.fromCodePoint(55313))
} catch {
   alert(55313);
} 
try{
   encodeURIComponent(String.fromCodePoint(55314))
} catch {
   alert(55314);
} 
try{
   encodeURIComponent(String.fromCodePoint(55315))
} catch {
   alert(55315);
} 

Fuzz results

Chrome logo
Chrome 129.0.0.0 desktop macOS 10.15.7

Updated

Thu Oct 03 2024
Found 2048 results
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Safari logo
Safari 18.0 desktop macOS 10.15.7

Updated

Thu Oct 03 2024
Found 2048 results
Loading...
Firefox logo
Firefox 131.0 desktop macOS 10.15

Updated

Thu Oct 03 2024
Found 2048 results
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