CVE-2026-104401 PUBLISHED

WordPress Memberful - Membership Plugin plugin <= 1.81.2 - Sensitive Data Exposure vulnerability

Assigner: Patchstack
Reserved: 02.10.2026 Published: 05.10.2026 Updated: 05.10.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Memberful
Product	Memberful - Membership Plugin
Versions	Default: unaffected affected from 0 to 1.81.2 (incl.)

Solutions

Update the WordPress Memberful - Membership Plugin plugin to the latest available version (at least 1.82.0).

Credits

sungbyeongchan | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/wordpress/plugin/memberful-wp/vulnerability/wordpress-memberful-membership-plugin-plugin-1-81-2-sensitive-data-exposure-vulnerability?_s_id=cve

Problem Types

Exposure of Sensitive System Information to an Unauthorized Control Sphere CWE

Impacts

Retrieve Embedded Sensitive Data