WordPress security changelog
MEDIUM CVE-2026-11357 Deferred

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor: Sensitive information exposure

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor is affected by sensitive information exposure. Exploitation requires at least contributor-level access. Successful exploitation can disclose data that should not be available to the caller. The published affected range is <= 3.7.5.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
Plugin slug
kadence-blocks
Affected
<= 3.7.5
Safe version
> 3.7.5
Published
Jun 18, 2026
Weakness
CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor

This CVE was published Jun 18, 2026 and is one of 17 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Kadence Blocks — Page Builder Toolkit for Gutenberg Editor to a release after 3.7.5, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.7.5 via the editor_assets_variables. This makes it possible for authenticated attackers, with contributor-level access and above, to extract the site's connected Kadence account license key, license owner email, api_key, api_email, and license domain from the browser console by inspecting window.kadence_blocks_params.proData. Exploitation requires only that an administrator has previously connected a valid Kadence license; the full credential bundle is then readable by any Contributor-level user from the block editor client context without any server-side request manipulation.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Primary and upstream sources