WordPress security changelog
MEDIUM CVE-2026-12902 Deferred

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor: A security weakness

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor is affected by a security weakness. Exploitation requires at least contributor-level access. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 3.7.7.

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
<= 3.7.7
Safe version
> 3.7.7
Published
Jul 01, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Jul 01, 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 3.7.7, 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 authorization bypass in all versions up to, and including, 3.7.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create arbitrary Media Library attachments by downloading remote images to the site's uploads directory via wp_upload_bits() and wp_insert_attachment(), bypassing the upload_files capability boundary.

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

References

Primary and upstream sources