The s2Member Pro plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 241216 via deserialization of untrusted input from the 's2member_pro_remote_op' vulnerable parameter. 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.

Improper Control of Generation of Code ('Code Injection') vulnerability in WP Sharks s2Member Pro allows Code Injection.This issue affects s2Member Pro: from n/a through 241114.

Improper Privilege Management vulnerability in WP Sharks s2Member Pro allows Privilege Escalation.This issue affects s2Member Pro: from n/a through 240315.