CVE-2026-104401 WordPress Memberful - Membership Plugin plugin <= 1.81.2 - Sensitive Data Exposure vulnerability
An attacker can retrieve sensitive system information from the Memberful WordPress plugin, potentially exposing internal data to unauthorized users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104401?
CVE-2026-104401 is a medium-severity vulnerability in Memberful - Membership Plugin, published on 5 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-497
Which versions are affected by CVE-2026-104401?
How do I fix CVE-2026-104401?
No fix has been published for CVE-2026-104401 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104401 being exploited?
There is no known exploitation of CVE-2026-104401 in the wild and no public exploit code.
Sources
Also known as GHSA-vjwf-8fv5-9q2x.