CVE-2026-39374
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductPlane
PublishedApr 7, 2026
First seenApr 7, 2026
How to fix
Update
- plane plane1.3.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| plane plane | v < 1.3.0 | 1.3.0 |
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