What the vulnerability does
01Description
The Persistent Login plugin for WordPress is vulnerable to generic SQL Injection via 'wppl_device_id' Cookie in all versions up to, and including, 3.1.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This vulnerability is only exploitable when the plugin's Login History feature is enabled.
Explanation of Vulnerability in Simple Terms
02Summary
Persistent Login versions 3.1.0 and earlier contain a SQL injection vulnerability in database query handling. An authenticated user with low privileges can craft malicious input to read sensitive data from the database, including user credentials and configuration details. The vulnerability requires valid login credentials but no additional user interaction.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site's database, including user credentials and configuration information.
Potential impact on your site
04Site Impact
User passwords, email addresses, and other database records may be exposed to authenticated attackers.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account with low-level privileges on the site.
Key dates
06Disclosure timeline
September 1, 2026
CVE published
September 1, 2026
Record updated
