QID 981154

QID 981154: Nodejs (npm) Security Update for remark-html (GHSA-9q5w-79cv-947m)

Security update has been released for remark-html to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

The documentation of `remark-html` has mentioned that it was safe by default. In practise the default was never safe and had to be opted into. This means arbitrary HTML can be passed through leading to potential XSS attacks.

CVSS V3 rated as High - 6.1 severity.

CVSS V2 rated as Medium - 4.3 severity.

Solution

The problem has been patched in 13.0.2 and 14.0.1: `remark-html` is now safe by default, and the implementation matches the documentation.Workaround:
On older affected versions, pass `sanitize: true`, like so:

```diff
- .use(remarkHtml)
+ .use(remarkHtml, {sanitize: true})
```

Vendor References

GHSA-9q5w-79cv-947m - github.com/advisories/GHSA-9q5w-79cv-947m

CVEs related to QID 981154

CVE-2021-39199 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-9q5w-79cv-947m	remark-html		github.com/advisories/GHSA-9q5w-79cv-947m

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