CVE-2026-39374

HIGH CVSS 3.1: 7.7 EPSS 0.21%
Updated Jul 24, 2026
Plane
Parameter Value
CVSS 7.7 (HIGH)
Affected Versions before 1.3.0
Fixed In 1.3.0
Type CWE-639 (Authorization Bypass)
Vendor Plane
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Plane Plane
cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*
1.3.0