---
id: CVE-2026-18216
title: >-
  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
  ad…
summary: >-
  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
  ad…
severity: none
published: '2026-08-15'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18216'
references:
  - url: 'https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00506
epssPercentile: 0.40558
ingestedAt: '2026-08-16T04:33:12.591Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.