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.
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Fixes

Solution

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Workaround

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History

Tue, 18 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-640

Mon, 17 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-287
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 15 Aug 2026 08:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-640

Sat, 15 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
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.
Title Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-17T20:36:05.964Z

Reserved: 2026-07-29T08:51:12.758Z

Link: CVE-2026-18216

cve-icon Vulnrichment

Updated: 2026-08-17T20:35:59.307Z

cve-icon NVD

Status : Deferred

Published: 2026-08-15T06:17:08.487

Modified: 2026-08-26T16:30:52.723

Link: CVE-2026-18216

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T03:15:04Z

Weaknesses