CVE-2026-1865
SQL Injection in WordPress User Registration Plugin Allows Data Exposure
Publication date: 2026-04-08
Last updated on: 2026-04-08
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wpengine | user_registration_and_membership | to 5.1.2 (inc) |
| wp_user_registration | wp_user_registration | to 5.1.2 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-89 | The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the User Registration & Membership plugin for WordPress, versions up to and including 5.1.2. It is a SQL Injection flaw caused by insufficient escaping and lack of proper preparation of the 'membership_ids[]' parameter supplied by users.
Authenticated attackers with Subscriber-level access or higher can exploit this vulnerability by appending additional SQL queries to existing ones, potentially extracting sensitive information from the database.
How can this vulnerability impact me? :
The vulnerability allows attackers with low-level authenticated access to perform SQL Injection attacks, which can lead to unauthorized extraction of sensitive data from the database.
This can compromise the confidentiality of user data and other sensitive information stored in the database, potentially leading to data breaches.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability allows authenticated attackers to perform SQL Injection attacks that can extract sensitive information from the database.
Such unauthorized access to sensitive data could potentially lead to non-compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive information against unauthorized access and breaches.
However, the provided information does not explicitly state the impact on compliance with these standards.