# CVE-2026-14472: Kubio AI Page Builder Stored XSS via copyright block

Source: https://junglewise.ai/threats/cve-2026-14472-kubio-ai-page-builder-stored-xss-via-copyright-block  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-18. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-14472 · Severity: medium · CVSS 6.4 · Published 2026-09-18

The Kubio AI Page Builder is a WordPress plugin that allows site administrators to create pages using a drag-and-drop interface. A vulnerability in the copyright block component allows authenticated contributors to inject malicious scripts into pages; these scripts execute for all visitors who view the affected page, potentially leading to account compromise, data theft, or defacement. The vulnerability bypasses WordPress's built-in content filtering mechanisms.

Technologies: [Kubio AI Page Builder](https://junglewise.ai/threats/technologies/ai-page-builder). Vendors: [Kubio](https://junglewise.ai/threats/vendors/kubio).

## Quick answers

**Is CVE-2026-14472 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-14472 being exploited in the wild.

**How severe is CVE-2026-14472?** Medium severity, with a CVSS score of 6.4, published 18 September 2026.

**Which products and versions are affected?** Kubio AI Page Builder up to 2.8.4.

**Is there a fix for CVE-2026-14472?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-14472 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-14472?** Check whether you run Kubio AI Page Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the CopyrightBlock::render_template() method of the Kubio plugin. The root cause is that entity-encoded script tags are treated as harmless text by WordPress's kses sanitization filter, but are then decoded back into executable HTML by a subsequent html_entity_decode() call, allowing the malicious script to execute in visitors' browsers. An authenticated attacker with contributor-level access or higher can inject the payload via the copyright block content field. Patches addressing the issue are available in plugin versions after 2.8.4.

## Affected products

- Kubio AI Page Builder up to 2.8.4

## Timeline

- 2026-09-18: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php](https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php)
- [https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php](https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php)

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- [Kubio AI Page Builder unauthenticated stored XSS](https://junglewise.ai/threats/cve-2026-88783-the-kubio-ai-page-builder-wordpress-plugin-before-2-9-3-does-not)
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