{"id":"CVE-2018-6383","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-6383","generatedAt":"2026-10-28T19:19:31.345Z","title":"Monstra CMS through 3.0.4 has an incomplete \"forbidden types\" list that excludes .php (and similar) file extensions but not the .pht or .phar extension, which allows remote authenticated Admins or Editors to execute arbitrary PHP code by uploading a…","description":"Monstra CMS through 3.0.4 has an incomplete \"forbidden types\" list that excludes .php (and similar) file extensions but not the .pht or .phar extension, which allows remote authenticated Admins or Editors to execute arbitrary PHP code by uploading a file, a different vulnerability than CVE-2017-18048.","published":"2018-01-29T18:29:00.000Z","lastModified":"2026-06-17T02:01:47.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-184"],"affected":["monstra/monstra"],"epss":{"score":0.13499,"percentile":0.96425,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2021-06-04","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":49949,"kind":"exploit","title":"Monstra CMS 3.0.4 - Remote Code Execution (Authenticated)","url":"https://www.exploit-db.com/exploits/49949","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/49949.py","file":"exploits/php/webapps/49949.py","published":"2021-06-04","added":"2021-06-04","updated":"2021-06-04","author":"Ron Jost","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2018-6383"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.commonstra-3.0.4.zip","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 13.5%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/monstra-cms/monstra/issues/429","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/monstra-cms/monstra/issues/429","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-6383","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}