# CVE-2026-88782: Kubio AI Page Builder stored XSS in image gallery URL

Source: https://junglewise.ai/threats/cve-2026-88782-the-kubio-ai-page-builder-wordpress-plugin-before-2-9-3-does-not  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-03. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-88782 · Severity: medium · CVSS 6.8 · Published 2026-10-03

Kubio AI Page Builder is a WordPress plugin for creating web pages visually. The plugin fails to validate URLs in image gallery items, allowing contributors and higher-privileged users to inject malicious code that executes when anyone—including administrators—clicks the link or previews the page. This could lead to account takeover or administrative credential theft.

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-2026-88782 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88782 being exploited in the wild.

**How severe is CVE-2026-88782?** Medium severity, with a CVSS score of 6.8, published 3 October 2026.

**Which products and versions are affected?** Kubio AI Page Builder before 2.9.3.

**Is there a fix for CVE-2026-88782?** Yes: fixed in 2.9.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-88782 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-88782?** 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.

## How to fix

- Fixed in 2.9.3

## Technical details

The plugin performs inadequate URI scheme validation on user-supplied link targets in the image gallery component, resulting in a stored cross-site scripting (XSS) vulnerability. An attacker with contributor role or above can craft a malicious payload (e.g., javascript: scheme) that persists in the page content and executes in the browser of any user who interacts with the affected gallery item, including administrators previewing unpublished submissions.

## Affected products

- Kubio AI Page Builder before 2.9.3

## Timeline

- 2026-10-01: disclosed
- 2026-10-03: patched: Fixed in version 2.9.3

## References

- [https://wpscan.com/vulnerability/b45063f1-65a0-44cb-9565-0242f30fd7a3/](https://wpscan.com/vulnerability/b45063f1-65a0-44cb-9565-0242f30fd7a3/)

## Related threats

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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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- [Kubio AI Page Builder Stored XSS via copyright block](https://junglewise.ai/threats/cve-2026-14472-kubio-ai-page-builder-stored-xss-via-copyright-block)