The WordPress Tag and Category Manager – AI Autotagger plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'st_tag_cloud' shortcode in all versions up to, and including, 3.13.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
https://blog.sucuri.net/2024/04/wordpress-vulnerability-patch-roundup-april-2024.html
https://plugins.trac.wordpress.org/changeset/3060746/simple-tags/trunk/inc/class.client.tagcloud.php
https://plugins.trac.wordpress.org/browser/simple-tags/trunk/inc/class.client.php#L348
https://plugins.trac.wordpress.org/browser/simple-tags/trunk/inc/class.client.php#L346