CVE-2026-39374

MEDIUM

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

Title source: cna
STIX 2.1

Description

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.

References (1)

Scores

CVSS v3 6.5
EPSS 0.0003
EPSS Percentile 8.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-639
Status published
Products (2)
makeplane/plane < 1.3.0
plane/plane < 1.3.0
Published Apr 07, 2026
Tracked Since Apr 08, 2026