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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);

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Chrome 145.0.0.0 desktop Windows NT 10.0
Updated16 Feb 2026
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Chrome 143.0.0.0 desktop macOS 10.15.7older version
Updated25 Jan 2026
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Chrome 117.0.0.0 Unknown Unknownolder version
Updated12 May 2024
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Firefox 148.0 desktop Windows NT 10.0
Updated23 Feb 2026
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Firefox 147.0 desktop macOS 10.15older version
Updated29 Jan 2026
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Firefox 125.0 Unknown Unknownolder version
Updated12 May 2024
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Microsoft Edge 145.0.0.0 desktop Windows NT 10.0
Updated18 Feb 2026
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Safari 16.6 Unknown Unknown
Updated12 May 2024
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