{"id":"CVE-2018-16731","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-16731","generatedAt":"2026-10-28T20:26:04.775Z","title":"CScms 4.1 allows arbitrary file upload by (for example) adding the php extension to the default filetype list (gif, jpg, png), and then providing a .php pathname within fileurl JSON data.","description":"CScms 4.1 allows arbitrary file upload by (for example) adding the php extension to the default filetype list (gif, jpg, png), and then providing a .php pathname within fileurl JSON data.","published":"2018-09-08T15:29:01.000Z","lastModified":"2026-06-17T01:44:44.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-434"],"affected":["chshcms/cscms"],"epss":{"score":0.01491,"percentile":0.73983,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/AvaterXXX/CScms/blob/master/CScms_up.md","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.patec.cn/newsshow.php?cid=24&id=123","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/AvaterXXX/CScms/blob/master/CScms_up.md","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.patec.cn/newsshow.php?cid=24&id=123","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-16731","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."}