---
id: CVE-2026-88783
title: >-
  The Kubio AI Page Builder WordPress plugin before 2.9.3 does not limit its
  widening of the allowed HTML elements to the editor context, so the wider set
  is applied when filtering content submitted by unauthenticated users as well,
  allowi…
summary: >-
  The Kubio AI Page Builder WordPress plugin before 2.9.3 does not limit its
  widening of the allowed HTML elements to the editor context, so the wider set
  is applied when filtering content submitted by unauthenticated users as well,
  allowi…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
product: Kubio AI Page Builder
affected:
  - kubio_ai_page_builder < 2.9.3
published: '2026-10-03'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T15:18:12.170'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88783'
references:
  - url: 'https://wpscan.com/vulnerability/94d11df1-dae7-479f-bc93-3db6b0925d99/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00276
epssPercentile: 0.19894
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-03T15:01:16.787239Z'
ingestedAt: '2026-10-03T06:39:57.565Z'
---

## Overview

The Kubio AI Page Builder WordPress plugin before 2.9.3 does not limit its widening of the allowed HTML elements to the editor context, so the wider set is applied when filtering content submitted by unauthenticated users as well, allowing them to store markup which the Kubio AI Page Builder WordPress plugin before 2.9.3's own script later executes in the browser of any visitor, or of an administrator reviewing the still-unapproved submission.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.