E2Pdf <= 1.20.18 - Authenticated (Administrator+) PHP Object Injection

The E2Pdf plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.20.18 via deserialization of untrusted input within the import_action and ajax_upload functions. This makes it possible for authenticated attackers, with administrative-level access and above, to inject a PHP Object. 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.