Vulnerability Report
Plugin High Patch path listed CVE-2023-3343

User Registration <= 3.0.1 - Authenticated (Subscriber+) PHP Object Injection

The User Registration plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.0.1 via deserialization of untrusted input from the 'profile-pic-url' parameter. This allows authenticated attackers, with subscriber-level permissions 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.

Quick Answer

CVE-2023-3343 is a high severity with CVSS 8.8 Vulnerability issue affecting the Plugin User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder. It affects Versions up to 3.0.1 and is fixed in 3.0.2.

Published
Jun 29, 2023
Last Updated
Jan 22, 2024
Slug
user-registration
Operational Summary

What the operator needs to know

Patch Status
Patched release is available
Remediation
Update to version 3.0.2, or a newer patched version
Operator Briefing

CVE-2023-3343 is tracked for the Plugin User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder as high severity with CVSS 8.8. The affected range is Versions up to 3.0.1. Update User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder to 3.0.2 or newer where that version is compatible with the site.

Issue Type
Vulnerability
Primary Fixed Version
3.0.2
Primary Affected Range
Versions up to 3.0.1
Tracking ID
CVE-2023-3343
Detailed Metadata
Software Type Plugin
Software Slug
user-registration View on wordpress.org
CVE CVE-2023-3343
Patched Versions
3.0.2
Affected Versions
Versions up to 3.0.1
Related CVE Cluster

Related CVEs for User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder

These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.

Critical CVE-2023-3342 3.0.2.1 Jul 04, 2023
CVE-2023-3342 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Remote Code Execution

User Registration <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Upload

Critical CVE-2026-1492 5.1.3 Mar 02, 2026
CVE-2026-1492 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Privilege Escalation

User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration

Critical CVE-2025-2563 4.1.2 Mar 24, 2025
CVE-2025-2563 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Privilege Escalation

User Registration & Membership <= 4.1.1 - Unauthenticated Privilege Escalation

High CVE-2024-2417 3.2.0 Apr 19, 2024
CVE-2024-2417 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Privilege Escalation

User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin <= 3.1.5 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation

High CVE-2022-3912 2.2.41 Nov 21, 2022
CVE-2022-3912 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Remote Code Execution

User Registration <= 2.2.4 - Authenticated (Subscriber+) Arbitrary File Upload

High CVE-2026-1779 5.1.3 Feb 25, 2026
CVE-2026-1779 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Vulnerability

User Registration & Membership <= 5.1.2 - Authentication Bypass

High CVE-2025-2594 4.1.3 Apr 01, 2025
CVE-2025-2594 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Vulnerability

User Registration & Membership <= 4.1.2 - Authentication Bypass

High CVE-2023-27459 2.3.3 Mar 21, 2023
CVE-2023-27459 User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Vulnerability

User Registration <= 2.3.2.1 - PHP Object Injection

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