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地图 / URI scheme validation bypass in ActionText `to_markdown` via user-supplied `<action-text-markdown>` marker tag

URI scheme validation bypass in ActionText `to_markdown` via user-supplied `<action-text-markdown>` marker tag

跨站脚本 / 反射型 XSS / #3727743

厂商
Ruby on Rails
严重程度
低危 · CVSS 4.3
赏金
—
弱点
反射型 XSS
研究员
@offsetmd
披露日期
2026-08-24
资产
https://github.com/rails/rails
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(3913 字符中的一小部分)
The markdown converter treats every `<action-text-markdown>` element as trusted internally-generated markup and emits its text verbatim. `Content#to_markdown` only creates that tag when serializing attachments, but the visitor does not distinguish internal nodes from user-supplied ones. A rich-text …
原文中的代码
SKIP_ESCAPING_PARENTS = %w[ action-text-markdown code pre ].freeze

默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 Ruby on Rails 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @offsetmd · 版权归作者与 Ruby on Rails 所有

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