The All-in-One WP Migration and Backup plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 7.89 via deserialization of untrusted input in the replace_serialized_values function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. 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. An administrator must export and restore a backup in order to trigger the exploit.
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.