CVE-2026-11961 — HIGH (8.1)

Vulnerability Description

The User Registration & Membership WordPress plugin before 5.2.3 does not validate that the membership tier submitted during public registration is one of the tiers allowed by the registration form before assigning that tier's associated user role, allowing unauthenticated users to register into an arbitrary published membership tier and obtain its role — up to administrator when such a tier exists.

CVSS Score

8.1

HIGH

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-269

References

https://wpscan.com/vulnerability/2ffab574-8626-472e-b6e4-09bcbaa62349/

FAQ

What is CVE-2026-11961?

CVE-2026-11961 is a vulnerability with a CVSS score of 8.1 (HIGH). The User Registration & Membership WordPress plugin before 5.2.3 does not validate that the membership tier submitted during public registration is one of the tiers allowed by the registration form b...

How severe is CVE-2026-11961?

CVE-2026-11961 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-11961?

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