---
title: "CVE-2026-88783: Kubio AI Page Builder WordPress - Stored XSS"
description: "Kubio AI Page Builder WordPress plugin < 2.9.3 contains a stored XSS caused by improper limitation of allowed HTML elements filtering, letting unauthenticated attackers execute scripts in visitors' or admins' browsers, exploit requires unauthenticated content submission."
url: https://panop.io/threat-heartbeat/CVE-2026-88783/
---

# CVE-2026-88783 Kubio AI Page Builder WordPress - Stored XSS

Kubio AI Page Builder WordPress plugin < 2.9.3 contains a stored XSS caused by improper limitation of allowed HTML elements filtering, letting unauthenticated attackers execute scripts in visitors' or admins' browsers, exploit requires unauthenticated content submission.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.28% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-88783)

## Details

Type

Stored XSS

Impact

Stored XSS

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

3 October 2026

Updated

15 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to version 2.9.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-88783](https://nvd.nist.gov/vuln/detail/CVE-2026-88783)
- [https://wpscan.com/vulnerability/94d11df1-dae7-479f-bc93-3db6b0925d99/](https://wpscan.com/vulnerability/94d11df1-dae7-479f-bc93-3db6b0925d99/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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