makeplane Plane up to 1.3.x Asset Management v2.py ProjectBulkAssetEndpoint.post privileges management

Summaryinfo

A vulnerability categorized as critical has been discovered in makeplane Plane up to 1.3.x. This impacts the function ProjectBulkAssetEndpoint.post of the file apps/api/plane/app/views/asset/v2.py of the component Asset Management. Such manipulation leads to privileges management. This vulnerability is listed as CVE-2026-105637. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in makeplane Plane up to 1.3.x and classified as critical. Affected by this issue is the function ProjectBulkAssetEndpoint.post of the file apps/api/plane/app/views/asset/v2.py of the component Asset Management. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Plane is an open-source project management tool. Prior to 1.4.0, ProjectBulkAssetEndpoint.post in apps/api/plane/app/views/asset/v2.py retrieves assets using id__in=asset_ids and workspace__slug=slug but does not constrain the query with project_id from the URL. A workspace Guest can provide asset UUIDs from another project in the same workspace and reassign their issue_id, comment_id, page_id, draft_issue_id, or project_id to an entity the attacker controls. Plane then treats the attacker's project as the new owner and provides a presigned download URL for the hijacked file. This issue is fixed in 1.4.0.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-105637 since 10/05/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1.4.0 eliminates this vulnerability.

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Productinfo

Vendor

• makeplane

Name

• Plane

Version

• 1.0
• 1.1
• 1.2
• 1.3

Website

• Product: https://github.com/makeplane/plane/

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