CVE-2020-7773— Valeriangalliat Markdown It Highlightjs 跨站脚本漏洞

Cross-site Scripting (XSS)

This affects the package markdown-it-highlightjs before 3.3.1. It is possible insert malicious JavaScript as a value of lang in the markdown-it-highlightjs Inline code highlighting feature. const markdownItHighlightjs = require("markdown-it-highlightjs"); const md = require('markdown-it'); const reuslt_xss = md() .use(markdownItHighlightjs, { inline: true }) .render('console.log(42){.">js}'); console.log(reuslt_xss);

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

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Valeriangalliat Markdown It Highlightjs 跨站脚本漏洞

Valeriangalliat Markdown It Highlightjs是Valeriangalliat个人开发者的一个为Web页面Markdown提供高亮的Js代码库。 markdown-it-highlightjs 3.3.1之前版本存在跨站脚本漏洞，该漏洞源于可以在markdown-it-highlightjs内联代码突出显示功能中将恶意JavaScript作为lang的值插入。

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