CVE-2026-104762Kadence Blocks <= 3.7.12 - Authenticated (Author+) Stored Cross-Site Scripting via Block Font Family Attribute
Updated under an hour ago ()
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It affects stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 11, 2026
- First seen by InfoSec Signals
- Oct 10, 2026
Affected products
stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor stellarwp:kadence_blocks_page_builder_toolkit_for_gutenberg_editor (from the name) | through 3.7.12 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c5c83ab8-91d4-488e-903d-2a4b7f0dfe7d?source=cve
- 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-frontend.php#L377
- 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/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/changeset?reponame=&old=3731453%40kadence-blocks&new=3731453%40kadence-blocks
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.