WordPress Gallery Plugin – NextGEN Gallery <= 3.38 - Authenticated (Admin+) PHAR Deserialization

The WordPress Gallery Plugin – NextGEN Gallery plugin for WordPress is vulnerable to PHAR Deserialization in all versions up to, and including, 3.38 via deserialization of untrusted input in the gallery_edit function. This makes it possible for authenticated attackers, with administrative-level access and above, 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.