{"id":"CVE-2025-66557","summary":"Nextcloud Deck app allowed user with \"Can share\" permission to modify permissions of other non-owners","details":"Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.14.6 and 1.15.2, a bug in the permission logic allowed users with \"Can share\" permission to modify the permissions of other recipients. This vulnerability is fixed in 1.14.6 and 1.15.2.","aliases":["GHSA-wwr8-hx9g-rjvv"],"modified":"2026-07-15T01:49:17.986938661Z","published":"2025-12-05T17:28:48.642Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-284"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66557.json"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/3247499"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66557.json"},{"type":"ADVISORY","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wwr8-hx9g-rjvv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66557"},{"type":"FIX","url":"https://github.com/nextcloud/deck/commit/f1da8b30a455f02373d44154da04494c949a95ae"},{"type":"FIX","url":"https://github.com/nextcloud/deck/pull/7131"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/deck","events":[{"introduced":"b490633a3d240ef4a8d6b8cf7b56836d9768a5ab"},{"fixed":"9f6d33e3374fed6bdd1704e5b551376db549acec"},{"introduced":"4059042a9cd641399c68edd15c0bce544f774c95"},{"fixed":"dbdfe16e9fcc22fd86f970051e93075d540d2017"},{"fixed":"f1da8b30a455f02373d44154da04494c949a95ae"}],"database_specific":{"extracted_events":[{"introduced":"1.14.0"},{"fixed":"1.14.6"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}],"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:nextcloud:deck:*:*:*:*:*:*:*:*"}}],"versions":["v1.14.5","v1.15.1","v1.14.4","v1.15.0","v1.14.3","v1.14.2","v1.14.1","v1.14.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66557.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"}]}