Clear it in 3 steps
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Start the environment
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Investigate the target
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Submit the flag
BlogSearch is a simple search engine for blog articles. The search query is reflected back on the results page — check whether user input is properly sanitized before being inserted.
Try entering HTML tags in the search box, e.g. <h1>Hello</h1>
HTML <script> tags can execute JavaScript
Start with a simple payload like <script>alert(1)</script> to confirm execution