What the vulnerability does
01Description
The External Login plugin for WordPress is vulnerable to SQL Injection via the 'log' parameter in all versions up to, and including, 1.11.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database when a PostgreSQL or MSSQL database is configured as the external authentication database.
Explanation of Vulnerability in Simple Terms
02Summary
External Login versions 1.11.2 and earlier contain a SQL injection vulnerability in database query handling. An attacker can craft malicious input to read sensitive data from the site's database without authentication. No user interaction is required. This affects any site running the vulnerable plugin.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site's database, including user credentials and private information.
Potential impact on your site
04Site Impact
Attackers can extract user data, credentials, and other sensitive information stored in your database.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
October 15, 2025
CVE published
April 8, 2026
Record updated
