GHSA-f246-xrrj-g8j6
Cross-site Scripting in markdown-it-highlightjs
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | markdown-it-highlightjs | < 3.3.1 | 3.3.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
```js
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);
```
References
External links from the advisory. They lead to third-party sites.