CVE Vulnerability

CVE-2020-7773

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);

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://snyk.io/vuln/SNYK-JS-MARKDOWNITHIGHLIGHTJS-1040461 Mitigation Third Party Advisory
https://github.com/valeriangalliat/markdown-it-highlightjs/pull/14 Exploit Third Party Advisory
https://github.com/valeriangalliat/markdown-it-highlightjs/blob/v3.3.0/index.js%23L52 Broken Link
Configurations

Configuration 1

cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:*:*:*:*:*:node.js:*:*
Information

Published : 2020-11-16 12:15

Updated : 2020-12-01 01:23

NVD link : CVE-2020-7773

Mitre link : CVE-2020-7773

Products Affected
No products.
CWE
CWE-79