Yoast Duplicate-Post WordPress Plugin 3.2.3 contains a persistent cross-site scripting vulnerability in plugin settings parameters. Attackers can inject malicious scripts into title prefix, suffix, menu order, and blacklist fields to execute arbitrary JavaScript in admin interfaces.
References
- https://duplicate-post.lopo.it/
- https://wordpress.org/plugins/duplicate-post/
- https://www.exploit-db.com/exploits/47424
- https://www.vulncheck.com/advisories/duplicate-post-persistent-cross-site-scripting
- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/duplicate-post/yoast-duplicate-post-323-authenticated-admin-stored-cross-site-scripting