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

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. 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

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