CVE-2020-11066: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Calling unserialize() on malicious user-submitted content can lead to modification of dynamically-determined object attributes and result in triggering deletion of an arbitrary directory in the file system, if it is writable for the web server. It can also trigger message submission via email using the identity of the website (mail relay). Another insecure deserialization vulnerability is required to actually exploit mentioned aspects.