CVE-2026-18435
Medium
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.
SeverityMedium
CVSS6.4
Exploit probability—
ProductKadence Blocks — Page Builder Toolkit for Gutenberg Editor
PublishedAug 1, 2026
First seenAug 1, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor | v ≤ 3.7.8 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.