{"id":"CVE-2020-20290","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-20290","generatedAt":"2026-10-27T22:33:34.394Z","title":"Directory traversal vulnerability in the yccms 3.3 project.","description":"Directory traversal vulnerability in the yccms 3.3 project. The delete, deletesite, and deleteAll functions' improper judgment of the request parameters, triggers a directory traversal vulnerability.","published":"2021-02-01T18:15:13.000Z","lastModified":"2026-06-17T03:02:57.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-22"],"affected":["yccms/yccms"],"epss":{"score":0.0133,"percentile":0.70838,"date":"2026-10-26","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 (1.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://blog.jiguang.xyz/posts/yccms-directory-traversal-vulnerability-report/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.jiguang.xyz/posts/yccms-directory-traversal-vulnerability-report/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-20290","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."}