CVE-2025-69284 In plane.io, a Guest User to a Workspace can still be able to see list of members

Medium 4.3 Published 2 Jan 2026 Updated 5 Jan 2026

Guest users can access the workspace members API to view admin email addresses, exposing sensitive user information.

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-2025-69284?

CVE-2025-69284 is a medium-severity missing authorization vulnerability in makeplane plane, published on 2 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Plane is an an open-source project management tool. In plane.io, a guest user doesn't have a permission to access https[:]//app[.]plane[.]so/[:]slug/settings. Prior to Plane version 1.2.0, a problem occurs when the `/api/workspaces/:slug/members/` is accessible by guest and able to list of users on a specific workspace that they joined. Since the `display_name` in the response is actually the handler of the email, a malicious guest can still identify admin users' email addresses. Version 1.2.0 fixes this issue.

Weakness: CWE-284

Which versions are affected by CVE-2025-69284?

It affects 1 product.

Products include Plane Plane.

How do I fix CVE-2025-69284?

No fix has been published for CVE-2025-69284 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-69284 being exploited?

There is no known exploitation of CVE-2025-69284 in the wild and no public exploit code.

Sources

Also known as GHSA-7qx6-6739-c7qr.