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Using HTML tags are allowed by default, can cause Cross-Site Scripting (XSS) #27

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rozium opened this issue Jan 3, 2021 · 0 comments
Open

Using HTML tags are allowed by default, can cause Cross-Site Scripting (XSS) #27

rozium opened this issue Jan 3, 2021 · 0 comments

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@rozium
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rozium commented Jan 3, 2021

Looking at this code, it use innerHTML and that means we can use HTML tag that can cause XSS Attack

Payload

this.flash('<img src=x onerror="alert(\'XSS Attack\')">');

Be careful for flash message that contain input from the user!
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