CVE-2026-39374 MEDIUM

CVE-2026-39374: Plane IDOR: Cross-Project Issue Date Modification via Bulk Update Endpoint

Vendor Makeplane
Product plane
Weakness CWE-639 · IDOR
Published April 7, 2026
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Plane is an an open-source project management tool. Prior to 1.3.0, the IssueBulkUpdateDateEndpoint allows a project member (ADMIN or MEMBER) to modify the start_date and target_date of ANY issue across the entire Plane instance, regardless of workspace or project membership. The endpoint fetches issues by ID without filtering by workspace or project, enabling cross-boundary data modification. This vulnerability is fixed in 1.3.0.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 8, 2026 Record updated