{"id":"CVE-2026-18216","state":"PUBLISHED","title":"Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login","description":"The Backup Migration WordPress plugin before 2.1.7 does not properly restrict a post-restore automatic login mechanism, allowing a user who administers one site of a multisite network to obtain a long-lived authenticated session as an administrator of another site in the same network, without credentials and bypassing two-factor authentication.","publishedAt":"2026-08-15T06:00:14.986Z","updatedAt":"2026-08-17T20:36:05.964Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Backup Migration"],"affected":[{"vendor":"Unknown","product":"Backup Migration","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.1.7","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18216.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18216","state":"PUBLISHED","datePublished":"2026-08-15T06:00:14.986Z","dateUpdated":"2026-08-17T20:36:05.964Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-29T08:51:12.758Z"},"containers":{"cna":{"title":"Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login","descriptions":[{"lang":"en","value":"The Backup Migration WordPress plugin before 2.1.7 does not properly restrict a post-restore automatic login mechanism, allowing a user who administers one site of a multisite network to obtain a long-lived authenticated session as an administrator of another site in the same network, without credentials and bypassing two-factor authentication."}],"affected":[{"vendor":"Unknown","product":"Backup Migration","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.1.7","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-08-15T06:00:14.986Z"},"credits":[{"lang":"en","value":"Thanh Lam Tang","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"HIGH","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-17T20:35:25.731091Z","id":"CVE-2026-18216","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","type":"CWE","lang":"en","description":"CWE-287 Improper Authentication"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-17T20:36:05.964Z"}}]}}}