CVE-2026-6703

MEDIUM EPSS 13.7%
Published Apr 21, 20262mo ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Apr 21, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
13.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

References 8

  • 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
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/187b072d-6314-4ac1-a924-b14324b2fd8d?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.