Impact This vulnerability has the potential to steal a user's cookie and gain unauthorized access to that user's account through the stolen cookie or redirect users to other malicious sites.
Patches Update to version 10.5.21 or apply this patch manually https://github.com/pimcore/pimcore/commit/a4491551967d879141a3fdf0986a9dd3d891abfe.patch
Workarounds Apply patch https://github.com/pimcore/pimcore/commit/a4491551967d879141a3fdf0986a9dd3d891abfe.patch manually.
References https://huntr.dev/bounties/e436ed71-6741-4b30-89db-f7f3de4aca2c/