CVE-2026-27705 Plane Vulnerable to Cross-Workspace/Cross-Project Asset Modification via IDOR in ProjectAssetEndpoint.patch

Medium 4.9 Published 25 Feb 2026 Updated 25 Feb 2026

Authenticated users can modify assets in any workspace or project by guessing asset IDs due to missing authorization checks in the asset patch endpoint.

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-2026-27705?

CVE-2026-27705 is a medium-severity missing authorization vulnerability in makeplane plane, published on 25 Feb 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. Prior to version 1.2.2, the `ProjectAssetEndpoint.patch()` method in `apps/api/plane/app/views/asset/v2.py` (lines 579–593) performs a global asset lookup using only the asset ID (`pk`) via `FileAsset.objects.get(id=pk)`, without verifying that the asset belongs to the workspace and project specified in the URL path. This allows any authenticated user (including those with the GUEST role) to modify the `attributes` and `is_uploaded` status of assets belonging to any workspace or project in the entire Plane instance by guessing or enumerating asset UUIDs. Version 1.2.2 fixes the issue.

Weakness: CWE-639

Which versions are affected by CVE-2026-27705?

It affects 1 product.

Products include Plane Plane.

How do I fix CVE-2026-27705?

No fix has been published for CVE-2026-27705 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-2026-27705 being exploited?

There is no known exploitation of CVE-2026-27705 in the wild and no public exploit code.

Sources

Also known as GHSA-rfj3-8c85-g46j.