QID 983099

QID 983099: Nodejs (npm) Security Update for highlight.js (GHSA-vfrc-7r7c-w9mx)

Security update has been released for highlight.js 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.

Affected versions of this package are vulnerable to Prototype Pollution. A malicious HTML code block can be crafted that will result in prototype pollution of the base object's prototype during highlighting. If you allow users to insert custom HTML code blocks into your page/app via parsing Markdown code blocks (or similar) and do not filter the language names the user can provide you may be vulnerable.

The pollution should just be harmless data but this can cause problems for applications not expecting these properties to exist and can result in strange behavior or application crashes, i.e. a potential DOS vector.

_If your website or application does not render user provided data it should be unaffected._

CVSS V3 rated as High - 6.8 severity.

CVSS V2 rated as Medium - 4.9 severity.

Solution

Versions 9.18.2 and 10.1.2 and newer include fixes for this vulnerability. If you are using version 7 or 8 you are encouraged to upgrade to a newer release.

Vendor References

GHSA-vfrc-7r7c-w9mx - github.com/advisories/GHSA-vfrc-7r7c-w9mx

CVEs related to QID 983099

CVE-2020-26237 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-vfrc-7r7c-w9mx	highlight.js		github.com/advisories/GHSA-vfrc-7r7c-w9mx

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