WordPress security changelog
HIGH CVE-2026-7465 Deferred

Spectra Gutenberg Blocks – Website Builder for the Block Editor: Code execution

Spectra Gutenberg Blocks – Website Builder for the Block Editor is affected by code execution. Exploitation requires at least contributor-level access. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 2.19.25.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Spectra Gutenberg Blocks – Website Builder for the Block Editor
Plugin slug
ultimate-addons-for-gutenberg
Affected
<= 2.19.25
Safe version
> 2.19.25
Published
May 30, 2026
Weakness
CWE-269 — Improper Privilege Management

This CVE was published May 30, 2026 and is one of 17 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Spectra Gutenberg Blocks – Website Builder for the Block Editor to a release after 2.19.25, 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 Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.19.25. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server. Exploitation requires a two-block payload embedded in post content: the first block registers a fake uagb/-prefixed block type with an attacker-specified render_callback, and the second block of the same fake type triggers invocation of that callback via call_user_func() during sequential block rendering in the same page request.

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

References

Primary and upstream sources