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CVE-2020-7773

nvd nist
Published: Nov 16, 2020Modified: Jun 17, 2026

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6.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Exploitability: 2.8 / Impact: 2.7
Source: NVD

Description

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);

Affected (1)

Markdown It Highlightjs
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Before 3.3.1

References (6)

Source: report@snyk.io
ExploitThird Party Advisory
Source: report@snyk.io
MitigationThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
MitigationThird Party Advisory

Timeline

No history available yet.