User Registration & Membership <= 4.1.1 - Unauthenticated Privilege Escalation

2025-03-24 00:00

Strategic Overview

Status

Patched in 4.1.2

Affected PluginUser Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder

Affected Version<= 4.1.1

CVSS9.8Critical

CVECVE-2025-2563

View all User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder vulnerabilities

Vulnerability Overview

The User Registration & Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 4.1.1. This is due to insufficient restrictions on role type in the 'prepare_members_data()' function. This makes it possible for unauthenticated attackers to create new user accounts with the 'administrator'' role.

Technical Analysis

REMEDIATION: Update to version 4.1.2, or a newer patched version --- IDENTIFIER: CWE-269 (Improper Privilege Management) The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

External References

https://www.cve.org/CVERecord?id=CVE-2025-2563 https://www.wordfence.com/threat-intel/vulnerabilities/id/ffd9cbd1-f8a9-401e-8cdd-1ff16f438b4a

CVSS Vector

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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