PT-2026-72165 · WordPress · Backup Migration

CVE-2026-18216

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Published

2026-08-15

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Updated

2026-08-15

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Backup Migration WordPress plugin versions prior to 2.1.7
Description An issue exists in the post-restore automatic login mechanism that lacks proper restrictions. This allows a user with administrator privileges on one site within a multisite network to obtain a long-lived authenticated session as an administrator of another site in the same network. This process occurs without requiring credentials and bypasses two-factor authentication.
Recommendations Update Backup Migration WordPress plugin to version 2.1.7 or later.

Exploit

Fix

Improper Authentication

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Weakness Enumeration

Related Identifiers

CVE-2026-18216

Affected Products

Backup Migration