Description
WordPress Plugin Duplicate Page is prone to multiple vulnerabilities, including cross-site scripting, cross-site request forgery, information disclosure and SQL injection vulnerabilities. Exploiting these issues could allow an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, allowing the attacker to steal cookie-based authentication credentials, to perform certain administrative actions and gain unauthorized access to the affected application, to obtain sensitive information which could aid in launching further attacks, or to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Duplicate Page version 2.3 is vulnerable; prior versions may also be affected.
Remediation
Edit the source code to ensure that input is properly sanitised or disable the plugin until a fix is available