{"id":"CVE-2018-18830","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-18830","generatedAt":"2026-10-29T01:43:19.185Z","title":"In the response, the server returns the storage path of the file, which can be accessed to execute arbitrary JSP code.","description":"An issue was discovered in com\\mingsoft\\basic\\action\\web\\FileAction.java in MCMS 4.6.5. Since the upload interface does not verify the user login status, you can use this interface to upload files without setting a cookie. First, start an upload of JSP code with a .png filename, and then intercept the data packet. In the name parameter, change the suffix to jsp. In the response, the server returns the storage path of the file, which can be accessed to execute arbitrary JSP code.","published":"2018-10-30T06:29:01.000Z","lastModified":"2026-06-17T01:47:59.000Z","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":["mingsoft/mcms"],"epss":{"score":0.01205,"percentile":0.6812,"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 (1.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://gitee.com/mingSoft/MCMS/issues/IO0IQ","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://gitee.com/mingSoft/MCMS/issues/IO0IQ","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-18830","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."}