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CVE-2026-18216

MEDIUM 6.5 CVSS 3.1
Published
August 15, 2026
Last modified
August 26, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

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 WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Backup Migration — Before 2.1.7

References

  • wpscan.com https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/
  • nvd.nist.gov Official NVD record