User Registration < 3.0.2 - Subscriber+ PHP Object Injection

The plugin does not properly sanitize the ‘profile-pic-url’ parameter, leading to a potential PHP Object Injection. This vulnerability stems from the deserialization of untrusted input, potentially enabling a malicious user with subscriber-level permissions to inject a PHP Object. The issue may escalate if a Property Oriented Programming (POP) chain is present via an additional plugin or theme.