Vulnerability Information
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Vulnerability Title
Notesnook: Stored XSS in mobile share editor via unescaped web clip title metadata
Vulnerability Description
Notesnook is a note-taking app focused on user privacy & ease of use. Prior to version 3.3.17, a stored XSS vulnerability exists in the mobile share / web clip flow because attacker-controlled clip metadata is concatenated into HTML without escaping and then rendered with innerHTML inside the mobile share editor WebView. An attacker can control the shared title metadata (for example through Android/iOS share metadata such as TITLE / SUBJECT, or through link-preview title data) and inject HTML such as </a><img src=x onerror=...>. When the victim opens the Notesnook share flow and selects Web clip, the payload is inserted into the generated HTML and executed in the mobile editor WebView. This issue has been patched in version 3.3.17.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Vulnerability Title
Notesnook 跨站脚本漏洞
Vulnerability Description
Notesnook是Streetwriters开源的一个端到端加密的笔记应用。 Notesnook 3.3.17之前版本存在跨站脚本漏洞，该漏洞源于移动共享或Web剪辑流程中存在存储型跨站脚本，攻击者控制的剪辑元数据未经转义即拼接至HTML中，并在移动共享编辑器WebView内通过innerHTML渲染，可能导致攻击者注入HTML并在受害者打开共享流程时执行。
CVSS Information
N/A
Vulnerability Type
N/A