CVE-2026-1869

MEDIUM

User Registration & Membership <= 5.2.0 - Missing Authorization to Unauthenticated Payment Bypass

Title source: cna

Description

The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to unauthorized modification of data due to missing validation checks in the confirm_payment() function in all versions up to, and including, 5.2.0. This makes it possible for unauthenticated attackers to bypass payment processing and activate paid memberships.

References (2)

Core 2

Core References

https://www.wordfence.com/threat-intel/vulnerabilities/id/9bf5b60b-5a4f-4227-97ac-a952019f46d9?source=cve

https://plugins.trac.wordpress.org/changeset/3552000/user-registration

Scores

CVSS v3 6.5

EPSS 0.0025

EPSS Percentile 16.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (1)

wpeverest/User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder < 5.2.0

Published Jun 26, 2026

Tracked Since Jun 26, 2026