CVE-2026-104762
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…
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.21% probability · 11th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
EPSS moved from 0.2% on 10 October 2026 to 0.2% on 26 October 2026.
References
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-css.php#L2516
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-css.php#L858
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-frontend.php#L377
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-frontend.php#L379
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-google-fonts.php#L152
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3731453%40kadence-blocks&new=3731453%40kadence-blocks
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c5c83ab8-91d4-488e-903d-2a4b7f0dfe7d?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.