CVE-2026-104401: Memberful - Membership Plugin

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Memberful Memberful - Membership Plugin memberful-wp allows Retrieve Embedded Sensitive Data.This issue affects Memberful - Membership Plugin: from n/a through 1.81.2.

Affected products

• Memberful Memberful - Membership Plugin: up to and including 1.81.2

Published 2026-10-05. Last modified 2026-10-06.