CVE-2026-18216Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login
Updated under an hour ago ()
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It affects Unknown Backup Migration. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown Backup Migration unknown:backup_migration (from the name) | before 2.1.7 | CNA record |
References
- https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.