Stored XSS in comments
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Comments can contain an author's website. This website is used in the href attribute of link elements and isn't filtered. Thus it allows URLs like `javascript:alert(1)` to be used. These URLs must be filtered by protocol, e.g. only allow http and https.
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阅读 HackerOne 原文 ↗作者 @kelunik · 版权归作者与 Paragon Initiative Enterprises 所有