What the vulnerability does
01Description
The AffiliateWP plugin for WordPress is vulnerable to SQL Injection via the ajax_get_affiliate_id_from_login function in all versions up to, and including, 2.28.2 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.
Explanation of Vulnerability in Simple Terms
02Summary
AffiliateWP versions up to 2.28.2 contain a SQL injection vulnerability that allows unauthenticated attackers to read sensitive data from the site database. The vulnerability exists in a network-accessible component and requires no user interaction. An attacker can craft malicious requests to extract information such as user credentials, affiliate data, and other confidential records.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site database, including user credentials and affiliate information.
Potential impact on your site
04Site Impact
Attackers can extract user passwords, affiliate records, and other confidential data without logging in.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
September 30, 2025
CVE published
April 8, 2026
Record updated
