WordPress security changelog
MEDIUM CVE-2026-6703 Deferred

Responsive Blocks – Page Builder for Blocks & Patterns: A security weakness

Responsive Blocks – Page Builder for Blocks & Patterns 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 2.0.9 through 2.2.1.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Responsive Blocks – Page Builder for Blocks & Patterns
Plugin slug
responsive-block-editor-addons
Affected
2.0.9 through 2.2.1
Safe version
> 2.2.1
Published
Apr 21, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Apr 21, 2026 and is one of 8 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Responsive Blocks – Page Builder for Blocks & Patterns to a release after 2.2.1, 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 Responsive Blocks – Page Builder for Blocks & Patterns plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 2.2.1. 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 modify global site-wide plugin configuration options, including toggling custom CSS, disabling blocks, changing layout defaults such as content width, container padding, and container gap, and altering auto-block-recovery behavior.

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