CVE-2026-102985

MEDIUM 6.5

Plane: Any project member can modify (deactivate) other members' records

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	makeplane
Product	plane
Published	Oct 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Affected Versions

makeplane / plane

< 1.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/makeplane/plane/security/advisories/GHSA-25gg-cxm8-g7h9 github.com: https://github.com/makeplane/plane/pull/9367 github.com: https://github.com/makeplane/plane/commit/dc9d80b2d2a499b967f0b541e083b283f463719f github.com: https://github.com/makeplane/plane/releases/tag/v1.4.0