---
id: CVE-2026-104762
title: >-
  The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for
  WordPress is vulnerable to Stored Cross-Site Scripting via Block Font Family
  Attribute in all versions up to, and including, 3.7.12 due to insufficient
  input sanit…
summary: >-
  The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for
  WordPress is vulnerable to Stored Cross-Site Scripting via Block Font Family
  Attribute in all versions up to, and including, 3.7.12 due to insufficient
  input sanit…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T06:16:39.707'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104762'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-css.php#L2516
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-css.php#L858
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-frontend.php#L377
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-frontend.php#L379
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-google-fonts.php#L152
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3731453%40kadence-blocks&new=3731453%40kadence-blocks
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/c5c83ab8-91d4-488e-903d-2a4b7f0dfe7d?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-10T06:24:42.861Z'
---

## Overview

The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Block Font Family Attribute in all versions up to, and including, 3.7.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This encoding bypass is only triggered when the "Load Google Fonts Locally" site option (kadence_blocks_font_settings['load_fonts_local']) is enabled, which is not the default configuration.

## Remediation

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