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CVE-2026-18216 The Backup Migration WordPress plugin before 2.1.7 does not properly restrict a post-restore automatic 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.

Affected products and versions

Product Affected versions Fixed in
Backup Migration 2.1 earliest → < 2.1.7 2.1.7
The 3 CVEs of Backup Migration →
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