---
id: CVE-2026-84219
title: >-
  The Kirki  WordPress plugin before 6.3.0 does not hold back every spelling of
  the HTML entities it decodes when rendering, allowing unauthenticated users to
  store JavaScript in a comment which then runs in the session of anyone viewing
  a…
summary: >-
  The Kirki  WordPress plugin before 6.3.0 does not hold back every spelling of
  the HTML entities it decodes when rendering, allowing unauthenticated users to
  store JavaScript in a comment which then runs in the session of anyone viewing
  a…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
published: '2026-09-06'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:09:21.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84219'
references:
  - url: 'https://wpscan.com/vulnerability/e95bd1e3-6f61-423f-add6-519e1ca7bf66/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00373
epssPercentile: 0.28556
ingestedAt: '2026-09-06T18:59:01.952Z'
---

## Overview

The Kirki  WordPress plugin before 6.3.0 does not hold back every spelling of the HTML entities it decodes when rendering, allowing unauthenticated users to store JavaScript in a comment which then runs in the session of anyone viewing a page that displays it, including an administrator, and on every page of the site when its header or footer is built to show comments.

## Remediation

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