CVE-2026-105633 (GCVE-0-2026-105633)
Vulnerability from cvelistv5
Published
2026-10-05 17:58
Modified
2026-10-05 18:22
Severity ?
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
Plane is an open-source project management tool. Prior to 1.4.0, the V2 issue-attachment PATCH endpoint accepts issue_id in the URL but omits it from the database query. A project member can use an issue_id they control in the URL while targeting another user's attachment by its pk UUID. Because the server matches only pk, workspace, and project_id, it modifies the attachment regardless of the issue_id in the URL. When the attachment is pending and has not been confirmed as uploaded, the PATCH handler sets created_by = request.user and transfers attachment ownership to the attacker. This issue is fixed in 1.4.0.
References
Impacted products
Vendor Product Version
makeplane plane Version: < 1.4.0
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