Rails::Html::SafeListSanitizer vulnerable to XSS when certain tags are allowed (math+style || svg+style)
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原文摘录
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The Rails HTML sanitzier allows to set certain combinations of tags in it's allow list that are not properly handled. Similar to the report [1530898](https://hackerone.com/reports/1530898), which identified the combination`select` and `style` as vulnerable, my fuzz testing from today suggests that …
原文中的代码
irb(main):016:0> require 'rails-html-sanitizer'
=> false
irb(main):017:0> Rails::Html::SafeListSanitizer.new.sanitize("<svg><style><script>alert(1)</script></style></svg>", tags: ["svg", "style"]).to_s
=> "<svg><style><script>alert(1)</script></style></svg>"
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阅读 HackerOne 原文 ↗作者 @0b5cur17y · 版权归作者与 Ruby on Rails 所有