Vulnerability Report

CVE-2026-11961

Title: User Registration & Membership arbitrary role assignment

Auth Bypass

Proof Of Concept

PoC Available for CVE-2026-11961

CWE Category NVD-CWE-noinfo

Published Date Jul 17, 2026

Modified Date Jul 17, 2026

Exploit Status Available

Score 8.1 CVSS v

Exploit Probability (EPSS)

0.25%

Vulnerability Summary

CVE-2026-11961: 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.

Impacted Vendors

Analysis in Progress...

Reference Links

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

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity HIGH

8.1

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-11961 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/JohenLastGen-JLG/CVE-2026-11961

View Code

July 17, 2026 MODIFIED

Vulnerability data updated via NVD.

July 17, 2026 MODIFIED

Vulnerability data updated via NVD.

July 17, 2026 MODIFIED

Vulnerability data updated via NVD.

July 17, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity HIGH

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.