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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-18216
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:17:08 UTC
Updated2026-08-15 06:17:08 UTC
DescriptionThe 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.

Risk And Classification

EPSS: 0.001820000 probability, percentile 0.079770000 (date 2026-08-15)

Problem Types: CWE-287 Improper Authentication

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Backup Migration affected 2.1.7 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Thanh Lam Tang (en)

CNA: WPScan (en)

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