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CVE-2026-6703

MEDIUM 4.3 CVSS 3.1
Published
April 21, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

Affected WordPress components

  • Responsive Blocks – Page Builder for Blocks & Patterns Plugin · responsive-block-editor-addons
    Confirmed match Active
    From 2.0.9 (including) to 2.2.1 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • cyberchimps Responsive Blocks – Page Builder for Blocks & Patterns — From 2.0.9 (including) to 2.2.1 (including)

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/responsive-block-editor-addons/tags/2.2.0/includes/class-responsive-block-editor-addons.php#L1730
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/responsive-block-editor-addons/tags/2.2.0/includes/class-responsive-block-editor-addons.php#L1814
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/responsive-block-editor-addons/tags/2.2.0/includes/class-responsive-block-editor-addons.php#L668
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/responsive-block-editor-addons/trunk/includes/class-responsive-block-editor-addons.php#L1730
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/responsive-block-editor-addons/trunk/includes/class-responsive-block-editor-addons.php#L1814
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/responsive-block-editor-addons/trunk/includes/class-responsive-block-editor-addons.php#L668
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3465616
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/187b072d-6314-4ac1-a924-b14324b2fd8d?source=cve
  • nvd.nist.gov Official NVD record