Interactsh server settings make users vulnerable to Subdomain Takeover

Interactsh is an open-source tool for detecting out-of-band interactions. Domains configured with interactsh server prior to version 1.0.0 were vulnerable to subdomain takeover for a specific subdomain, i.e `app.` Interactsh server used to create cname entries for `app` pointing to `projectdiscovery.github.io` as default, which intended to used for hosting interactsh web client using GitHub pages. This is a security issue with a self-hosted interactsh server in which the user may not have configured a web client but still have a CNAME entry pointing to GitHub pages, making them vulnerable to subdomain takeover. This allows a threat actor to host / run arbitrary client side code (cross-site scripting) in a user's browser when browsing the vulnerable subdomain. Version 1.0.0 fixes this issue by making CNAME optional, rather than default.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Interactsh 跨站脚本漏洞

Interactsh是Interactsh开源的一个 OOB 交互收集服务器和客户端库。 Interactsh 1.0.0之前版本存在跨站脚本漏洞，该漏洞源于允许攻击者在浏览易受攻击的子域时执行跨站脚本（XSS）攻击。

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