Parallels Plesk Small Business Panel 10.2.0 does not properly validate string data that is intended for storage in an XML document, which allows remote attackers to cause a denial of service (parsing error) or possibly have unspecified other impact via a crafted cookie, as demonstrated by cookies to client@1/domain@1/hosting/file-manager/ and certain other files.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.