Versions of console-feed prior to 2.8.10 are vulnerable to Cross-Site Scripting (XSS). The package fails to properly escape the rendered output. If an application uses console-feed and a malicious JavaScript payload was passed to a console.log('%_', payload) call, the package would render HTML containing the malicious payload.

Recommendation

Upgrade to version 2.8.10 or later.

References

• https://www.npmjs.com/advisories/1088