The Advanced Ads plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.52.1 via deserialization of untrusted input in the 'placement_slug' parameter. This makes it possible for authenticated malicious users 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 malicious user to delete arbitrary files, retrieve sensitive data, or execute code.
Vulmon