Description
WordPress Plugin Duplicate Page is prone to an SQL injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Duplicate Page version 3.3 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 3.4 or latest
References
https://blog.sucuri.net/2019/04/sql-injection-in-duplicate-page-wordpress-plugin.html
https://blog.sucuri.net/2020/04/duplicated-vulnerabilities-in-wordpress-plugins.html
https://plugins.svn.wordpress.org/duplicate-page/trunk/readme.txt
Related Vulnerabilities
IBM RTC Cross-site Scripting (XSS) Vulnerability (CVE-2020-4691)
WordPress Plugin Image Intense SQL Injection (3.2.5)
MySQL CVE-2013-3794 Vulnerability (CVE-2013-3794)
MySQL CVE-2021-35623 Vulnerability (CVE-2021-35623)
Mailman Improper Restriction of Excessive Authentication Attempts Vulnerability (CVE-2021-42096)