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 an authenticated contributor account. 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: See mitigation notes
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 25 known issues for this plugin.

What to do

Update, patch or deactivate.

This archive could not verify a fixed version from the official author release notes reviewed on 2026-10-13. Disable the affected feature or component where practical until remediation for the deployed configuration is established. Official author release notes: https://wordpress.org/plugins/kadence-blocks/.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

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

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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