{"id":"CVE-2020-28693","aliases":["EUVD-2020-21091","GHSA-p5vc-h7j2-25qc"],"status":"published","title":"An unrestricted file upload issue in HorizontCMS 1.0.0-beta allows an authenticated remote...","description":"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","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02528,"percentile":0.85007,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2020-11-16T20:42:22Z","modified":"2026-10-20T10:53:08Z","products":[{"vendor":"horizontcms_project","product":"horizontcms"}],"references":[{"url":"https://github.com/jkana/HorizontCMS-1.0.0-beta-shell-upload","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/ttimot24/HorizontCMS/issues/21","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28693"},{"url":"https://github.com/advisories/GHSA-p5vc-h7j2-25qc"}],"sources":{"cve":[{"id":"CVE-2020-28693","description":"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","status":"published","published":"2020-11-16T20:42:22Z","modified":"2024-08-04T16:40:59.777Z","updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2020-21091","description":"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","status":"published","published":"2020-11-16T20:42:22Z","modified":"2024-08-04T16:40:59Z","updated_at":"2026-11-03T03:07:09.169254Z"}],"ghsa":[{"id":"GHSA-p5vc-h7j2-25qc","title":"An unrestricted file upload issue in HorizontCMS 1.0.0-beta allows an authenticated remote...","description":"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","status":"published","published":"2022-05-24T17:34:20Z","modified":"2023-01-29T05:04:46Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:45:37.901426Z"}],"nvd":[{"id":"CVE-2020-28693","description":"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","status":"published","published":"2020-11-16T21:15:13.69Z","modified":"2026-06-17T03:10:42.27Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:24.137599Z"}],"osv":[{"id":"CVE-2020-28693","description":"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","status":"published","published":"2020-11-16T21:15:13.69Z","modified":"2026-10-20T10:53:08.772039353Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.612899Z"}]}}