Provide references for CVE-2021-32820.
Where can I find more information about CVE-2021-32820?
References are available at: https://securitylab.github.com/advisories/GHSL-2021-018-express-handlebars/, https://www.npmjs.com/package/express-handlebars, https://github.com/express-handlebars/express-handlebars/pull/163, https://github.com/express-handlebars/express-handlebars/commit/78c47a235c4ad7bc2674bddd8ec2721567ed8c72, https://github.com/express-handlebars/express-handlebars/blob/78c47a235c4ad7bc2674bddd8ec2721567ed8c72/README.md#danger-.