{"id":"CVE-2026-104956","published":"2026-10-05T17:17:11.143","lastModified":"2026-10-05T20:17:09.707","description":"Plane is an open-source project management tool. Prior to 1.4.0, the unauthenticated public issues endpoint accepts group_by and sub_group_by query parameters and passes them without an allowlist to grouped paginators, where they are used as ORM field names by F(field), .values(field), .order_by(field), and Window partition_by operations. An anonymous attacker can supply arbitrary field paths that trigger an unhandled FieldError or KeyError and an HTTP 500 response, or force the ORM to resolve __-separated relational paths as a blind traversal oracle. This is the same field-name injection class addressed by earlier order_by sanitization, but that remediation left group_by and sub_group_by unvalidated. The issue does not directly disclose column values because issue_group_values() returns an empty list for unknown fields, the result projection uses a fixed required_fields list, and the subgrouped path raises KeyError before serialization. This issue is fixed in 1.4.0.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwes":["CWE-943"],"vendors":[],"products":[],"references":[{"url":"https://github.com/makeplane/plane/commit/d3d3de44cf13991025783c598d8b34229fb47729","tags":[]},{"url":"https://github.com/makeplane/plane/pull/9347","tags":[]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-wwgj-929g-42cm","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-wwgj-929g-42cm","tags":[]}],"exploitRefs":[{"url":"https://github.com/makeplane/plane/commit/d3d3de44cf13991025783c598d8b34229fb47729","tags":[]},{"url":"https://github.com/makeplane/plane/pull/9347","tags":[]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-wwgj-929g-42cm","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-wwgj-929g-42cm","tags":[]}],"hasPoc":true,"ai":null}