by Kastro
Paper/Archive/CVE-2026-105637

CVE-2026-105637

makeplane plane — Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling of CVE-2026-46558)

EPSS 0.3%public exploitCVSS 9.6
critical.is priorityof 100
44
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 24.9.249 × 205.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Plane is an open-source project management tool. Prior to 1.4.0, ProjectBulkAssetEndpoint.post in apps/api/plane/app/views/asset/v2.py retrieves assets using id__in=asset_ids and workspace__slug=slug but does not constrain the query with project_id from the URL. A workspace Guest can provide asset UUIDs from another project in the same workspace and reassign their issue_id, comment_id, page_id, draft_issue_id, or project_id to an entity the attacker controls. Plane then treats the attacker's project as the new owner and provides a presigned download URL for the hijacked file. This issue is fixed in 1.4.0.

Affected

ProductAffectedFixed inSource
plane< 1.4.0–CNA

Scores by source

GitHub_M (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwprefgithub.com/makeplane/plane/pull/9495refgithub.com/makeplane/plane/commit/15e835710c7f938e0fae9c0ee77bb8162ff436a0refgithub.com/makeplane/plane/releases/tag/v1.4.0