User Registration & Membership <= 5.2.2 - Missing Authorization to Unauthenticated User Deletion via Stripe Handler

2026-06-26 00:00

Strategic Overview

Status

Patched in 5.2.3

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

Affected Version<= 5.2.2

CVSS5.3Medium

CVECVE-2026-11966

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 – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.2.2. This makes it possible for unauthenticated attackers to delete users.

Technical Analysis

REMEDIATION: Update to version 5.2.3, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

External References

https://www.cve.org/CVERecord?id=CVE-2026-11966 https://www.wordfence.com/threat-intel/vulnerabilities/id/69347507-b9fe-4334-a428-e874173ddbb8

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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