{"id":"CVE-2026-52782","summary":"OpenProject: IDOR through /projects/\u003cA\u003e/settings/project_storages/\u003cA_ps_id\u003e via PATCH parameter \"storages_project_storage[project_folder_id]\" leads to Access to Unauthorized Resources","details":"OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through /projects/\u003cA\u003e/settings/project_storages/\u003cA_ps_id\u003e via PATCH parameter \"storages_project_storage[project_folder_id]\" leads to Access to Unauthorized Resources. A project-admin in one project can hijack the managed Nextcloud or OneDrive folder of another project on the same storage by writing the victim project's project_folder_id into the attacker's Storages::ProjectStorage row. The next managed-folder sync overwrites the ACL on the referenced folder with the attacker project's user list. This vulnerability is fixed in 17.3.3 and 17.4.1.","aliases":["GHSA-3vpx-94qx-xpw6"],"modified":"2026-07-15T01:48:54.676427809Z","published":"2026-06-26T18:59:27.758Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52782.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52782.json"},{"type":"ADVISORY","url":"https://github.com/opf/openproject/security/advisories/GHSA-3vpx-94qx-xpw6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52782"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opf/openproject","events":[{"introduced":"0"},{"fixed":"5ee515c5c80c3aaf1e7527f63e4e69798aef1b29"},{"introduced":"57fb3abf08b0075149e7abe7dbf5de99e07aee06"},{"fixed":"8203fc2286fd48d7d72f52b3c4a2487f96fcea28"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"17.3.3"},{"introduced":"17.4.0"},{"fixed":"17.4.1"}]}}],"versions":["v17.3.1","v17.4.0","v17.3.2","11.2.1","v10.5","v9.0.0-pre","v5.0.4","sprint/2015_04","sprint/2015_03","sprint/2015_02","sprint/2015_01","sprint/2014_18","sprint/2014_16","sprint/2014_13","sprint/2014_12","sprint/2014_11","sprint/2014_10","sprint/2014_09","sprint/2014_08","2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52782.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}