{"id":"CVE-2020-27387","details":"An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/\u003cphp_file_name\u003e. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.","modified":"2026-08-27T03:49:11.799930468Z","published":"2020-11-05T02:15:12.067Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha2:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha3:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha4:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha5:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha6:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha7:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha8:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.0.0-alpha2"},{"last_affected":"1.0.0-alpha2"},{"introduced":"1.0.0-alpha3"},{"last_affected":"1.0.0-alpha3"},{"introduced":"1.0.0-alpha4"},{"last_affected":"1.0.0-alpha4"},{"introduced":"1.0.0-alpha5"},{"last_affected":"1.0.0-alpha5"},{"introduced":"1.0.0-alpha6"},{"last_affected":"1.0.0-alpha6"},{"introduced":"1.0.0-alpha7"},{"last_affected":"1.0.0-alpha7"},{"introduced":"1.0.0-alpha8"},{"last_affected":"1.0.0-alpha8"}],"source":"CPE_STRING","vendor_product":"horizontcms_project:horizontcms"}]},"references":[{"type":"ADVISORY","url":"https://github.com/rapid7/metasploit-framework/pull/14340"},{"type":"FIX","url":"https://blog.vonahi.io/whats-in-a-re-name/"},{"type":"FIX","url":"https://github.com/ttimot24/HorizontCMS/commit/436b5ab679fd27afa3d99c023dbe103113da4fee"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/160046/HorizontCMS-1.0.0-beta-Shell-Upload.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ttimot24/horizont-cms","events":[{"introduced":"59c2843b5df2ac2e78b1d54db4e40dbe082cf233"},{"last_affected":"5aa34ac4e457a49b83f24a2969593c495f3ed9ad"},{"fixed":"436b5ab679fd27afa3d99c023dbe103113da4fee"}],"database_specific":{"cpe":["cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha:*:*:*:*:*:*","cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.0.0-alpha"},{"last_affected":"1.0.0-alpha"},{"introduced":"1.0.0-beta"},{"last_affected":"1.0.0-beta"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["1.0.0-alpha","1.0.0-beta","v1.0.0-beta","v1.0.0-alpha.8","v1.0.0-alpha.7","v1.0.0-alpha.6","v1.0.0-alpha.5","v1.0.0-alpha.4","v1.0.0-alpha.3","v1.0.0-alpha.2","v1.0.0-alpha"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27387.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"}]}