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Characters to break out from eval string

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Characters with which you can break out of a string from eval.

m-boll
Created bym-boll
Created May 12, 2024
Updated May 28, 2025

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CategoryJavaScript Syntax
VisibilityPublic
TypeJS
CharsetUTF-8
Template used:
eval('"$[chr]');log($[i]);

Sample payloads

eval('""');alert(34);

Fuzz results

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Chrome 144.0.0.0 desktop Windows NT 10.0

Updated

Fri Jan 30 2026
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Chrome 143.0.0.0 desktop macOS 10.15.7older version

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Sun Jan 25 2026
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Chrome 117.0.0.0 Unknown Unknownolder version

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Sun May 12 2024
Found 1 result
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Firefox 147.0 desktop macOS 10.15

Updated

Thu Jan 29 2026
Found 1 result
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Firefox logo
Firefox 125.0 Unknown Unknownolder version

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Sun May 12 2024
Found 1 result
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Edge logo
Microsoft Edge 144.0.0.0 desktop Windows NT 10.0

Updated

Fri Jan 30 2026
Found 1 result
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Safari logo
Safari 16.6 Unknown Unknown

Updated

Sun May 12 2024
Found 1 result
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