Medium severity6.4NVD Advisory· Published Aug 1, 2026· Updated Aug 12, 2026
CVE-2026-18435
CVE-2026-18435
Description
The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'toggleIcon' Block Attribute in all versions up to, and including, 3.7.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=3.7.8
Patches
Vulnerability mechanics
References
4- plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-table-of-contents-block.phpnvd
- plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/class-kadence-blocks-table-of-contents.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/5f346cc7-92ad-4f76-a71c-864c22ed56b5nvd
News mentions
2- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 3, 2026 to August 9, 2026)Wordfence Blog · Aug 14, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (July 27, 2026 to August 2, 2026)Wordfence Blog · Aug 8, 2026