CVE-2026-11966 — MEDIUM (5.3)

Vulnerability Description

The User Registration & Membership WordPress plugin before 5.2.3 does not perform a capability check for unauthenticated callers on one of its membership payment actions and acts on a caller-supplied user identifier, allowing unauthenticated attackers to delete recently-registered, payment-pending user accounts.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-639

References

https://wpscan.com/vulnerability/8e3be064-b3b7-4d68-960b-8c850c3e6f77/

FAQ

What is CVE-2026-11966?

CVE-2026-11966 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The User Registration & Membership WordPress plugin before 5.2.3 does not perform a capability check for unauthenticated callers on one of its membership payment actions and acts on a caller-supplied...

How severe is CVE-2026-11966?

CVE-2026-11966 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-11966?

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