CVE-2026-14472

The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via kubio/copyright Block Content in all versions up to, and including, 2.8.4 due to insufficient input sanitization and output escaping. 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. This bypasses both the WordPress core kses-on-save filter and the plugin's own wp_kses_post() call, because entity-encoded script tags are treated as inert text by kses but are decoded into live HTML by the subsequent html_entity_decode() call in CopyrightBlock::render_template().

• CWE-79

• https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php#L22
• https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php#L38
• https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/lib/src/Core/Blocks/BlockBase.php#L413
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3616537%40kubio&new=3616537%40kubio
• https://www.wordfence.com/threat-intel/vulnerabilities/id/89392f97-58c5-48db-b835-013ef493ca5e?source=cve

Published

Sep 18, 2026

Last Modified

Sep 18, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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