CVE-2026-102985
Plane is an open-source project management tool. In 1.3.1 and earlier, ProjectMemberViewSet.partial_update places its authorization checks i
CVSS
6.5
Medium
EPSS
0.3%
p19
KEV
—
Exploit Today
6
0-100
Published: Oct 14, 2026 · Last modified: Oct 20, 2026 · CWE-862
Plane is an open-source project management tool. In 1.3.1 and earlier, ProjectMemberViewSet.partial_update places its authorization checks inside the role update branch, so a guest or member can omit role and change another ProjectMember record's is_active field, including deactivating a project administrator. ProjectMemberPreferenceEndpoint.patch separately trusts the member_id path value and lets a project member overwrite another member's preferences. These missing object-level authorization checks permit membership disruption and cross-member preference tampering. The vulnerability is fixed in 1.4.0.
- github.comhttps://github.com/makeplane/plane/commit/dc9d80b2d2a499b967f0b541e083b283f463719f
- github.comhttps://github.com/makeplane/plane/pull/9367
- github.comhttps://github.com/makeplane/plane/releases/tag/v1.4.0
- github.comhttps://github.com/makeplane/plane/security/advisories/GHSA-25gg-cxm8-g7h9
- github.comhttps://github.com/makeplane/plane/security/advisories/GHSA-25gg-cxm8-g7h9