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-2026-6703 is a medium severity with CVSS 4.3 Vulnerability issue affecting the Plugin Responsive Blocks – Page Builder for Blocks & Patterns. It affects 2.0.9 through 2.2.1 and is fixed in 2.2.2.
CVE-2026-6703 is tracked for the Plugin Responsive Blocks – Page Builder for Blocks & Patterns as medium severity with CVSS 4.3. The affected range is 2.0.9 through 2.2.1. Update Responsive Blocks – Page Builder for Blocks & Patterns to 2.2.2 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
responsive-block-editor-addons
View on wordpress.org
|
| CVE | CVE-2026-6703 |
| Patched Versions |
2.2.2
|
| Affected Versions |
2.0.9 through 2.2.1
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Responsive Blocks <= 2.0.6 - Authenticated (Contributor+) Stored Cross-Site Scripting
Responsive Blocks <= 2.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
Responsive Blocks <= 2.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
Responsive Blocks <= 1.9.9 - Authenticated (Contributor+) Stored Cross-Site Scripting
Responsive Blocks – WordPress Gutenberg Blocks <= 1.9.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via section_tag Parameter
Responsive Blocks – WordPress Gutenberg Blocks <= 1.9.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
Responsive Blocks – WordPress Gutenberg Blocks <= 1.8.8 - Authenticated (Contributor+) Stored Cross-Site Scripting
Responsive Blocks <= 2.2.0 - Unauthenticated Open Email Relay via REST API 'email_to' Parameter
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