What’s Vulnerable › Vulnerabilities

CVE-2024-12562: s2Member Pro <= 241216 - Unauthenticated PHP Object Injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-15 · updated 2026-06-17
• Weakness: CWE-502

Description

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.

Affected products

• WP Sharks s2Member Pro: before 250214 — fixed in 250214

How to fix

Upgrade to a fixed version: WP Sharks s2Member Pro 250214. Check the vendor advisory for mitigations.

References

• https://s2member.com/changelog/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/65192fdb-86db-475a-8c61-4db922920cfe?source=cve

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