Vulnerability Details 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);
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 57.9%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
References
- https://github.com/valeriangalliat/markdown-it-highlightjs/blob/v3.3.0/index.js%23L52
- https://github.com/valeriangalliat/markdown-it-highlightjs/pull/14
- https://snyk.io/vuln/SNYK-JS-MARKDOWNITHIGHLIGHTJS-1040461
- https://github.com/valeriangalliat/markdown-it-highlightjs/blob/v3.3.0/index.js%23L52
- https://github.com/valeriangalliat/markdown-it-highlightjs/pull/14
- https://snyk.io/vuln/SNYK-JS-MARKDOWNITHIGHLIGHTJS-1040461
Products affected by CVE-2020-7773
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:1.0.0
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:1.1.0
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:1.1.1
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:1.1.2
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:2.0.0
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:3.0.0
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:3.1.0
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:3.2.0
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cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:3.3.0