WooLentor <= 2.5.3 - PHP Object Injection

The WooLentor plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.5.3 via deserialization of untrusted input in the function woolentor_set_views_count, which unserializes a user-provided cookie. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.