{"id":"CVE-2020-28693","details":"An unrestricted file upload issue in HorizontCMS 1.0.0-beta allows an authenticated remote attacker to upload PHP code through a zip file by uploading a theme, and executing the PHP file via an HTTP GET request to /themes/\u003cphp_file_name\u003e","modified":"2026-08-27T08:15:05.845673Z","published":"2020-11-16T21:15:13.690Z","references":[{"type":"ADVISORY","url":"https://github.com/ttimot24/HorizontCMS/issues/21"},{"type":"EVIDENCE","url":"https://github.com/jkana/HorizontCMS-1.0.0-beta-shell-upload"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ttimot24/horizont-cms","events":[{"introduced":"5aa34ac4e457a49b83f24a2969593c495f3ed9ad"},{"last_affected":"5aa34ac4e457a49b83f24a2969593c495f3ed9ad"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*:*:*","extracted_events":[{"introduced":"1.0.0-beta"},{"last_affected":"1.0.0-beta"}]}}],"versions":["1.0.0-beta","v1.0.0-beta"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28693.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}