CVE-2026-18216 — MEDIUM (6.5)

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-287

References

https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/

FAQ

What is CVE-2026-18216?

CVE-2026-18216 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...

How severe is CVE-2026-18216?

CVE-2026-18216 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18216?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.