Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-18216 EUVD-2026-59591GHSA-g4x6-qr8w-c3x7

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

Published Aug 15, 2026 · Updated Aug 17, 2026 · Assigned by WPScan

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

VendorProductAffectedFixed
— Backup Migration < 2.1.7 2.1.7

References