47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
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<img src='assets/htb.png' style='zoom: 40%;' align=left /> <font size='4'>Phantom Script</font>
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20<sup>th</sup> Oct 2024
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Prepared By: Xclow3n
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Challenge Author: Xclow3n
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Difficulty: <font color=green>Very Easy</font>
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Classification: Official
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# [Synopsis](#synopsis)
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- Phantom Script is a very easy web challenge where players can learn about Cross Site Scripting interactively.
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## Skills Required
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- Basic understanding of HTML/CSS/JS.
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## Skills Learned
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- Cross-Site Scripting (XSS)
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# [Solution](#Solution)
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Visiting the web page brings up the following display:
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We can see three sections: the web app, the Vulnerable Code window, and the Documentation.
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Performing a search updates both the article content and the Vulnerable Code window, showing where our input is processed in the vulnerable code.
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According to the documentation, our goal is to trigger an alert box to receive the flag.
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Entering the following payload: `<img src=x onerror="alert(1)" />`
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Triggers an alert box, and after a short wait, we receive the flag.
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This completes the challenge! :)
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