CVE-2026-11961
User Registration & Membership < 5.2.3 - Unauthenticated Privilege Escalation via Unbound members_data Membership ID
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.
INFO
Published Date :
July 17, 2026, 7:16 a.m.
Last Modified :
July 17, 2026, 7:16 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-11961
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the User Registration & Membership plugin to version 5.2.3.
- Verify that membership tiers are correctly assigned after the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-11961.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/2ffab574-8626-472e-b6e4-09bcbaa62349/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-11961 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-11961
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-11961 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-11961 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Unknown', 'product': 'User Registration & Membership', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.2.3', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added 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. Added Reference https://wpscan.com/vulnerability/2ffab574-8626-472e-b6e4-09bcbaa62349/