{"id":"CVE-2017-18048","details":"Monstra CMS 3.0.4 allows users to upload arbitrary files, which leads to remote command execution on the server, for example because .php (lowercase) is blocked but .PHP (uppercase) is not.","modified":"2026-07-08T15:10:56.391326Z","published":"2018-01-23T06:29:00.213Z","references":[{"type":"FIX","url":"https://github.com/monstra-cms/monstra/issues/426"},{"type":"EVIDENCE","url":"https://blogs.securiteam.com/index.php/archives/3559"},{"type":"EVIDENCE","url":"https://securityprince.blogspot.in/2017/12/monstra-cms-304-arbitrary-file-upload.html"},{"type":"EVIDENCE","url":"https://www.exploit-db.com/exploits/43348/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/monstra-cms/monstra","events":[{"introduced":"81bad8b6649253bd972ac4158816189d38366216"},{"last_affected":"81bad8b6649253bd972ac4158816189d38366216"}],"database_specific":{"cpe":"cpe:2.3:a:monstra:monstra:3.0.4:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0.4"},{"last_affected":"3.0.4"}],"source":"CPE_STRING"}}],"versions":["3.0.4","v3.0.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18048.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}