---
id: CVE-2026-114427
title: GutenKit 2.5.0 - 2.5.4 - Author+ Stored XSS via Page Settings Custom CSS
summary: >-
  The GutenKit  WordPress plugin before 2.5.5 does not properly sanitize custom
  CSS saved against a post before printing it inside an inline style block on
  the published page, allowing users with the Author role and above to break out
  of t…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H'
cvssSource: adp
cwe:
  - CWE-79
product: GutenKit
affected:
  - GutenKit >= 2.5.0 < 2.5.5
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-06T11:48:00.445627Z'
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T12:00:54.238Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114427'
references:
  - url: 'https://wpscan.com/vulnerability/c5380cc6-55e5-4ccd-8b83-c611139800b1/'
tags:
  - cve.org
ingestedAt: '2026-11-06T06:46:27.282Z'
epss: 0.0029
epssPercentile: 0.21712
---

## Overview

The GutenKit  WordPress plugin before 2.5.5 does not properly sanitize custom CSS saved against a post before printing it inside an inline style block on the published page, allowing users with the Author role and above to break out of the style element and store JavaScript that executes in the browser of any visitor who views the post. Exploitation affects sites running WordPress below 7.0.

## Affected

- `GutenKit >= 2.5.0 < 2.5.5`

## Remediation

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