Provide references for CVE-2021-29460.
Where can I find more information about CVE-2021-29460?
References are available at: https://github.com/getkirby/kirby/security/advisories/GHSA-qgp4-5qx6-548g, https://github.com/getkirby/kirby/releases/tag/3.5.4, http://packetstormsecurity.com/files/162359/Kirby-CMS-3.5.3.1-Cross-Site-Scripting.html.