CVE-2026-105634
HIGH
8,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high
Description
AI Translation Available
Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partial_update method allows any project member, including a user with the lowest GUEST role, to modify another project member's role. The authorization check prevents assigning a role higher than the requester's role but does not prevent assigning a lower or equal role, allowing a Guest to demote Administrators and Members and deny them project control. This vulnerability is fixed in 1.3.0.
269
Improper Privilege Management
DraftCommon Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
https://github.com/makeplane/plane/commit/587fe76032fb69275866fdeb655699a70a83c…
https://github.com/makeplane/plane/pull/8833
https://github.com/makeplane/plane/releases/tag/v1.3.0
https://github.com/makeplane/plane/security/advisories/GHSA-494h-3rcq-5g3c