CVE-2026-14472
Kubio AI Page Builder <= 2.8.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via kubio/copyright Block Content
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 | CWE-79 |
| Vendor | extendthemes |
| Product | kubio ai page builder |
| Published | Sep 18, 2026 |
Get instant alerts for extendthemes kubio ai page builder
Be the first to know when new medium vulnerabilities affecting extendthemes kubio ai page builder are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N