{"id":"CVE-2020-29158","aliases":["EUVD-2020-21538","GHSA-hh5m-6r25-ccqm"],"status":"published","title":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can...","description":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0068,"percentile":0.52852,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862","CWE-863"],"published":"2020-12-28T07:56:06Z","modified":"2026-10-20T10:53:12Z","products":[{"vendor":"zammad","product":"zammad"}],"references":[{"url":"https://zammad.com/en/advisories/zaa-2020-23","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://github.com/zammad/zammad/commit/cf5a5e396058d4b134dd33d0a62b11c1733c98ab","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-29158"},{"url":"https://github.com/advisories/GHSA-hh5m-6r25-ccqm"}],"sources":{"cve":[{"id":"CVE-2020-29158","description":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.","status":"published","published":"2020-12-28T07:56:06Z","modified":"2024-08-04T16:48:01.583Z","updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2020-21538","description":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.","status":"published","published":"2020-12-28T07:56:06Z","modified":"2024-08-04T16:48:01Z","updated_at":"2026-11-03T03:07:07.919663Z"}],"ghsa":[{"id":"GHSA-hh5m-6r25-ccqm","title":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can...","description":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.","status":"published","published":"2022-05-24T17:37:26Z","modified":"2023-01-29T05:05:11Z","cwes":["CWE-863"],"updated_at":"2026-11-02T14:45:43.934947Z"}],"nvd":[{"id":"CVE-2020-29158","description":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.","status":"published","published":"2020-12-28T08:15:11.523Z","modified":"2026-06-17T03:11:06.093Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:06:28.340168Z"}],"osv":[{"id":"CVE-2020-29158","description":"An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.","status":"published","published":"2020-12-28T08:15:11.523Z","modified":"2026-10-20T10:53:12.818208497Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:16.612899Z"}]}}