{"id":"CVE-2026-64637","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-64637","generatedAt":"2026-10-28T01:19:21.819Z","title":"Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root user account.","description":"Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root user account.","published":"2026-08-07T18:17:20.000Z","lastModified":"2026-10-24T16:10:00.000Z","status":"Awaiting Analysis","sourceIdentifier":"support@hackerone.com","cvss":{"version":"3.0","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-269"],"affected":[],"epss":{"score":0.00471,"percentile":0.40499,"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 (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://support.plesk.com/hc/en-us/articles/42432168683799","source":"support@hackerone.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64637","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."}