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CVE-2026-18216

Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login

23Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.