Pimcore contains Unrestricted Upload of File with Dangerous Type
### Impact
The upload functionality for updating user profile does not properly validate the file content-type, allowing any authenticated user to bypass this security check by adding a valid signature (p.e. GIF89) and sending any invalid content-type. This could allow an authenticated attacker to upload HTML files with JS content that will be executed in the context of the domain.
### Patches
Update to version 10.5.16 or apply this patch manually
https://github.com/pimcore/pimcore/pull/14125.patch