CVE-2026-104762
Kadence Blocks <= 3.7.12 - Authenticated (Author+) Stored Cross-Site Scripting via Block Font Family Attribute
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
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 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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
through 3.7.12
References 7
plugins.trac.wordpress.org
- browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-frontend.php#L379
- browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-frontend.php#L377
- browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-google-fonts.php#L152
- browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-css.php#L2516
- browser/kadence-blocks/tags/3.7.12/includes/class-kadence-blocks-css.php#L858
- changeset?reponame=&old=3731453%40kadence-blocks&new=3731453%40kadence-blocks