Stored Cross-Site Scripting Vulnerability in Kadence Blocks for WordPress
CVE-2026-18435

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Kadence Blocks — Page Builder Toolkit For Gutenberg Editor
Vendor
CVE Published:
1 August 2026

What is CVE-2026-18435?

The Kadence Blocks — Page Builder Toolkit for the Gutenberg Editor plugin for WordPress exposes a Stored Cross-Site Scripting vulnerability. This issue originates from the 'toggleIcon' Block Attribute, which lacks adequate input sanitation and output handling. Authenticated attackers, with at least contributor-level privileges, could exploit this vulnerability to inject arbitrary scripts into pages. These malicious scripts execute whenever users view the affected pages, potentially compromising user data and site integrity.

Affected Version(s)

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor 0 <= 3.7.8

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/kadence-blocks...
https://plugins.trac.wordpress.org/browser/kadence-blocks...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wordfence PRISM
.